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Crash Course (sometimes stylized as CrashCourse) is an educational YouTube channel started by the Green brothers, Hank Green and John Green, who are notable for their VlogBrothers channel.[1][2][3] Originally, John and Hank presented humanities and science courses to viewers, respectively,[4] although the series has since expanded to incorporate courses by additional hosts.

Crash Course
Crash Course logo.png
Created byJohn Green
Hank Green
Developed by
Written byVarious
Directed by
  • Stan Muller
  • Nicholas Jenkins
  • Brandon Brungard
  • Nicole Sweeney
Creative director(s)Thought Café (Formerly Thought Bubble)
Presented by


Foreign Language

  • Yasser Abumuailek
Theme music composerJason Weidner
Country of originUnited States
Original language(s)English
No. of seasons36
No. of episodes1110 as of February 12th, 2019
Executive producer(s)John Green
Hank Green
Producer(s)Stan Muller
Brandon Brungard
Nicholas Jenkins
Nicole Sweeney
Production location(s)
  • Stan Muller
  • Brandon Brungard
  • Nicholas Jenkins
  • Nicole Sweeney
Camera setupMulti-camera
Running time6–15 minutes
2–4 minutes (Kids; Recess)
Original networkYouTube
Picture format1080p
Original releaseJanuary 26, 2012 (2012-01-26) –
Related shows
External links

Crash Course was one of the 100 initial channels of YouTube's $100 million original channel initiative. Crash Course launched a preview on December 2, 2011. As of March 10, 2019, the Crash Course YouTube channel has over 9 million subscribers[5] and the channel passed 1 billion total views in February 2019.[6] In November 2014, Hank Green announced that a partnership with PBS Digital Studios would allow them to produce more courses, starting in January 2015.

To date, there are 36 main series of Crash Course, with John hosting nine and Hank hosting seven. Together with Emily Graslie, they also co-hosted Big History. Alongside the PBS partnership, and with John commencing a year-long hiatus from the show in 2015, additional hosts were brought in to increase the number of concurrent series: Phil Plait (Astronomy), Craig Benzine (U.S. Government and Politics and Film History), Adriene Hill (Economics and Statistics), Jacob Clifford (Economics), Shini Somara (Physics and Engineering), Andre Meadows (Games), Carrie Anne Philbin (Computer Science), Mike Rugnetta (Mythology and Theater), Nicole Sweeney (Sociology), Emily Graslie (Big History 2), Lily Gladstone (Film Production), Michael Aranda (Film Criticism), Thomas Frank (Study Skills), Jay Smooth (Media Literacy), and Evelyn Ngugi (Business: Soft Skills).

A second channel, Crash Course Kids, is hosted by Sabrina Cruz and has completed its first series, Science. The first foreign-language course, an Arabic reworking of the original World History series, is hosted by Yasser Abumuailek. The main channel has also begun a series of shorter animated episodes, called Recess, that focus on topics from previous Crash Course series.


Series overviewEdit

Main seriesEdit

Series Episodes Series premiere Series finale Host
World History
World History 2
January 26, 2012
July 11, 2014
November 9, 2012
April 4, 2015
John Green
Biology 40 January 30, 2012 October 29, 2012 Hank Green
Ecology 12 November 5, 2012 January 21, 2013 Hank Green
English Literature
Literature 2
Literature 3
Literature 4
November 15, 2012
February 27, 2014
July 7, 2016
November 7, 2017
January 24, 2013
June 12, 2014
September 8, 2016
February 13, 2018
John Green
U.S. History 48 January 31, 2013 February 6, 2014 John Green
Chemistry 46 February 11, 2013 January 13, 2014 Hank Green
Psychology 40 February 3, 2014 November 24, 2014 Hank Green
Big History
Big History 2
September 17, 2014
May 24, 2017
January 9, 2015
July 12, 2017
Hank Green
John Green
Emily Graslie[n 1]
Anatomy & Physiology 47 January 6, 2015 December 21, 2015 Hank Green
Astronomy 46 January 15, 2015 January 21, 2016 Phil Plait
U.S. Government and Politics 50 January 23, 2015 March 4, 2016 Craig Benzine
Intellectual Property 7 April 23, 2015 June 25, 2015 Stan Muller
Economics 35 July 8, 2015 June 9, 2016 Adriene Hill
Jacob Clifford[n 2]
Philosophy 46 February 8, 2016 February 13, 2017 Hank Green
Physics 46 March 31, 2016 March 24, 2017 Shini Somara
Games 29 April 1, 2016 December 16, 2016 Andre Meadows
Computer Science 40 February 22, 2017 December 21, 2017 Carrie Anne Philbin
World Mythology 41 February 24, 2017 January 28, 2018 Mike Rugnetta
Sociology 44 March 13, 2017 February 12, 2018 Nicole Sweeney
Film History
Film Production
Film Criticism
April 13, 2017
August 24, 2017
January 11, 2018
August 3, 2017
December 14, 2017
April 26, 2018
Craig Benzine
Lily Gladstone
Michael Aranda
Study Skills 10 August 8, 2017 October 10, 2017 Thomas Frank
Statistics 44 January 24, 2018 January 9, 2019 Adriene Hill
Theater 50 February 9, 2018 March 1, 2019 Mike Rugnetta
Media Literacy 12 February 27, 2018 May 15, 2018 Jay Smooth
History of Science 46 March 26, 2018 April 29, 2019 Hank Green
Engineering 46 May 17, 2018 May 2, 2019 Shini Somara
Navigating Digital Information 10 January 8, 2019 March 12, 2019 John Green
Business: Soft Skills 14 March 13, 2019 Evelyn Ngugi
European History 9 April 12, 2019 John Green

Kids seriesEdit

Series Episodes Series premiere Series finale Host
Science[n 3] 95 March 3, 2015 March 16, 2016 Sabrina Cruz

Foreign language seriesEdit

Series Language Episodes Series premiere Series finale Host
World History[n 4] Arabic 25 January 19, 2018 July 5, 2018 Yasser Abumuailek


Series Episodes Series premiere Series finale
Recess 2 March 5, 2018
A History of Crash Course 1 December 4, 2018
How Crash Course is Made[n 5] 7 March 22, 2019 April 10, 2019


The science series (and Philosophy, but not Computer Science) are filmed in Missoula, Montana, in a studio building that also houses SciShow.[7] The Biology and Ecology series were filmed in front of green screen. From the Chemistry season onward, these series were filmed on new custom-built sets. These series are produced and edited by Nicholas Jenkins, while Blake de Pastino serves as script editor. The sound design and music for these series are provided by Michael Aranda and in later series, his company Synema Studios.

The humanities series (except Philosophy and Economics) and Computer Science are filmed in a studio in Indianapolis, Indiana, which is also home to The Art Assignment and Healthcare Triage. They are produced and edited by Stan Muller, Mark Olsen, and Brandon Brungard.

Crash Course Kids was filmed in a studio in Toronto, Ontario. The series was directed by Michael Aranda, and produced by the Missoula Crash Course team.

Crash Course Economics is filmed in the YouTube Space in Los Angeles, California, and produced by the Indianapolis Crash Course team.

Graphic design for all of the series except Biology and Ecology is provided by Thought Café (formerly Thought Bubble).

Starting with the Statistics course in early 2018, courses that are not PBS co-productions are directly identifying as made by Complexly, complete with logo branding and suggestions for their other channels.


Craig Benzine, host of U.S. Government and Politics, was brought on as part of the PBS Digital Studios funding deal.

The Crash Course YouTube channel was teased in December 2011,[8] and launched in January 2012 as one of the initial original, YouTube-funded channels.[9][10] In April 2013, John Green detailed that Crash Course was going through financial hardships.[11] In July 2013, Hank Green expressed his frustration with the ways YouTube had been changing and controlling its website.[12][13]

Funds from Google eventually ran out, and shortly after Green's A Chat with YouTube video, the VlogBrothers decided to launch Subbable, a crowdfunding website where viewers can donate, monthly, to channels in return for perks. Donating is optional, as Hank Green stated, "We ascribe to the idealistic notion that audiences don't pay for things because they have to but because they care about the stuff that they love and want it to continue to grow".[14] Crash Course was the first series and channel to be offered on Subbable, and from this point onward, would be funded by the website.[15] In March 2015, Subbable was acquired by Patreon, and Crash Course's crowdfunding was moved over to Patreon.

In 2014, Crash Course announced a partnership with PBS Digital Studios. The partnership will introduce Benzine and Plait, who have hosted U.S. Government and Politics, and Astronomy, respectively.[16] Hank Green also announced he will be hosting an Anatomy & Physiology series, and that another host will host an Economics series, as John takes a year-long break from the series.[16]

Arts coursesEdit

Some courses, presented by neither Hank nor John Green have been added to the Crash Course curriculum since it first began in 2012.


On March 25, 2016, the Crash Course YouTube channel uploaded a two-minute preview for Crash Course Games. It covers the history of games and several types of games, including board games, video games, card games, role-playing games, sports, and more. The series was hosted by Andre Meadows and premiered April 1, 2016.


On April 6, 2017, a preview for Crash Course Film was uploaded. The series consists of three segments: Film History hosted by Craig Benzine, Film Production hosted by Lily Gladstone, and Film Criticism hosted by Michael Aranda.[17] Film History covers the invention of cinema technology, the evolution of film language, and trends in filmmaking. Film Production covers the process of filmmaking and the roles of key crew members. Film Criticism analyzes titles including Citizen Kane, Aliens, Selma, Do the Right Thing, Apocalypse Now, Moonlight, and 2001: A Space Odyssey.[18]


On February 2, 2018, a preview for Crash Course Theater and Drama was uploaded. The first episode was uploaded on February 9 of the same year. The show was is hosted by Mike Rugnetta, and covers the history of theater throughout different cultures and time periods.

Humanities coursesEdit

John Green, one half of the VlogBrothers, began his Crash Course series on January 26, 2012, with World History. As a collective, John has referred to the courses he teaches as "Humanities".[19]

As a result of a partnership with PBS Digital Studios, as well as John's decision to take a break from Crash Course in 2015, new hosts have been introduced to host the humanities courses: Craig Benzine (Government), Adriene Hill and Jacob Clifford (Economics), and Andre Meadows (Games).

Hank's sixth series, Philosophy, is also a humanities course, although it is produced by the team in Missoula who have traditionally produced the science series.

World HistoryEdit

Author John Green, co-creator of Crash Course and host of World History, Literature, and U.S. History.

Crash Course World History[20] was the first series launched on the Crash Course channel, running from January 26 to November 5, 2012.

On January 26, 2012, the series launched with "The Agricultural Revolution" and a new episode aired on YouTube every Thursday. Throughout an episode, Green, the show's host and executive producer, elaborates on the topic presented at the beginning of the video. Raoul Meyer, an AP World History teacher and Green's former teacher at Indian Springs School, writes the show, with revisions and additions by Green.[21]

Crash Course World History features recurring segments such as "The Open Letter," where Green reads an open letter to a historical figure, period, item, or concept. Occasionally Green converses with a naïve, younger version of himself whom he calls "Me from the past"; this character usually has naïve or obvious questions or statements about the topic.[4][22] A running joke is that the Mongols are a major exception to most sweeping generalizations in world history. Mentions of this fact cue the "Mongoltage" (a portmanteau of "Mongol" and "montage"), which shows a drawing of Mongols shouting "We're an Exception!" followed by a three-second clip of a scene from the 1963 film Hercules Against the Mongols depicting a village raid.

In Crash Course World History, Green frequently encourages his viewers to avoid looking at history through Eurocentric or "Great Man" lenses, but to be conscious of a broader historical context. Crash Course World History, filmed in Indianapolis, has a broad following, having attracted millions of viewers.[23] It has a particular appeal to American students taking the AP World History class and exam; many students and teachers use the videos to supplement their courses.[9][24][25] Various episodes were featured in online news publications.[26][27]

After 42 episodes, World History concluded on November 9, 2012. On June 27, 2014, in a video preview, John Green announced World History would return for a second season, lasting 30 episodes.[28] Ultimately, the second season ended on Apr 4, 2015. He made a few predictions about the future and also quoted at his last sentence: "Also, thanks for watching this series. It has been amazingly fun to create, and we appreciate all of you."[29]

In 2018, an Arabic-language edition of World History, hosted by Yasser Abumuailek, launched. It is produced by Deutsche Welle and hosted on their Arabic YouTube channel.[30]


John's second series is Crash Course Literature, which first aired as an eight-episode miniseries, from November 15, 2012. Works that have been covered include Romeo and Juliet, The Catcher in the Rye, The Great Gatsby, and Emily Dickinson's poetry.

In February 2014, it was announced John Green would follow his U.S. History series with Crash Course Literature 2.[31] This second season began on February 27, 2014, and ran for 16 episodes, covering ancient works such as The Odyssey and Oedipus and novels like To Kill a Mockingbird, Slaughterhouse-Five, Frankenstein, and Beloved.

In January 2016, John announced that a third season of Crash Course Literature would air in the summer. This season will cover The Adventures of Huckleberry Finn, Invisible Man, One Hundred Years of Solitude, Their Eyes Were Watching God, Sula, Lord of the Flies as well as some Shakespearean sonnets.

On April 4, 2017 John Green revealed in a VlogBrothers video that Literature will be returning for a fourth series in Fall 2017; he mentioned Nineteen Eighty-Four by George Orwell as a possible book to be covered.[32] On June 22 of that year, at VidCon, the full list for the fourth season was announced: 1984, The Handmaid's Tale, Parable of the Sower, Candide, Macbeth, To the Lighthouse, The Yellow Wallpaper, and Pride and Prejudice.[33]

U.S. HistoryEdit

On the January 24, 2013, finale of the first season of Crash Course Literature, John Green announced that it would be followed by Crash Course U.S. History, beginning the following week on January 31, 2013 with "The Black Legend, Native Americans, and Spaniards." Following in the tone set by World History, Green puts an emphasis on maintaining an open and non-Western view of American History. A new segment called the "Mystery Document" replaces the "Open Letter"; Green takes a manuscript from the fireplace's secret compartment and reads it aloud, then must guess its author and the source work it is excerpted from. If he is incorrect, he is punished by a shock pen. Whilst the Mongoltage is largely absent, the "Libertage," photos associated with America overtop an American flag with an electric guitar sound effect opening and ending with an explosion, appears whenever America's great national pride is referenced. The series ended on February 6, 2014.[31] As with World History, Crash Course U.S. History is written by Raoul Meyer.

U.S. Government and PoliticsEdit

As part of the partnership with PBS Digital Studios, Craig Benzine, known on YouTube as WheezyWaiter, was brought in to host the U.S. Government and Politics series.[34] Benzine said that the course will provide an overview of how the government of the United States is supposed to function, and how it actually does function. He also said that the course will teach about "the branches of government, politics, elections, political parties, pizza parties, and much, much more".

The series began on January 23, 2015, and ended on March 4, 2016.


In Hank's November 2014 announcement of the PBS partnership and the new series of Crash Course in 2015, he mentioned that a Crash Course Economics was in the works, but that it was not yet known who would present it.[34] In February 2015, John announced that reporter Adriene Hill and high school teacher Jacob Clifford will host,[35] and in July 2015, a preview video was released on the Crash Course channel. The series was launched on July 8, 2015, and finished on June 9th, 2016.


On January 18, 2016, Hank Green announced he would be hosting a new series about philosophy in February 2016.[36] On February 8th, the first philosophy episode was released. Philosophy is the first course to have a corporate sponsor; Squarespace will present each episode. The series was launched February 8, 2016. The series is produced by the science-series team in Missoula, Montana, as the series focuses on issues in logic and the philosophy of science. The series ended on February 13, 2017.


On February 17, 2017, a preview for Crash Course Mythology was uploaded. Hosted by Mike Rugnetta, the series began on February 24, 2017. It covers creation myths, pantheons, destruction myths, heroes, mythical places, creatures, objects, and myths in the modern world.

Science coursesEdit

Hank Green, co-creator of Crash Course, has hosted several science courses on the series.
Phil Plait, the host of the Astronomy series.

Hank Green began his Crash Course series with Biology, on January 30, 2012. John referred to Hank's series as "the science stuff" counterpart to his humanities courses.[19] As part of the partnership with PBS Digital Studios, additional hosts have been brought in to host recent series: Phil Plait (Astronomy), and Shini Somara (Physics).

A 2017 series, Computer Science, is also a science course, although it is produced by the team in Indianapolis who have traditionally produced the humanities series.


Hank Green's first series, Crash Course Biology, launched on January 30, 2012 with "That's Why Carbon Is a Tramp," and a new episode aired on YouTube every Monday until October 22, 2012. The series used humor to blend entertainment into its educational content.[37] A recurring segment on the program is titled "Biolo-graphy," in which Green relays a short biography of a person who is usually associated with the topic of the overall episode. For the benefit of uncertain viewers, Hank Green links YouTube annotations to every specific subtopic he explains in the video at the conclusion of the episode (the annotations replay the video starting from the particular annotation the viewer selects). In July 2012, a Crash Course Biology episode discussing comparative anatomy was featured on a Mashable article.[38]


In the final episode of Crash Course Biology, Green revealed that the successor series, Crash Course Ecology, would follow in the spirit of the Biology series.[39] It premiered on November 5, 2012, and ran for 12 episodes.


In January 2013, Hank Green announced that his next series would be Crash Course Chemistry, following a similar style to his previous Biology and Ecology series. He talked about the importance of chemistry to the world, and talked about the series in a brief 2-minute preview video.[40] This series premiered on February 11, 2013.


On January 3, 2014, Hank Green teased the launch of a series on psychology, before launching it on February 3.[41]

Anatomy & PhysiologyEdit

On January 15, 2014, Hank Green announced he would be hosting a new series about anatomy & physiology in 2015. The series began on January 6, 2015.


Phil Plait began teaching a course on astronomy on January 15, 2015. Plait stated that the course, "will cover basic topics in astronomy like motions in the sky, naked-eye observing, the planets, eclipses, stars, galaxies, and the whole Universe."[42]


On January 29, 2016, the Crash Course Tumblr confirmed that the physics course will debut in late March, hosted by Shini Somara.[43] A 2-minute preview video for Crash Course Physics was uploaded to YouTube on February 18, 2016. The series premiered March 31, 2016.

Computer ScienceEdit

On February 15, 2017, a preview episode of Crash Course Computer Science was posted on the channel. It began on February 22 and is hosted by Carrie Anne Philbin.


On February 28, 2017, a preview for Crash Course Sociology was uploaded. It premiered on March 13 and is hosted by Nicole Sweeney.


On January 17, 2018, a preview for Crash Course Statistics was uploaded. It will premiere the following week and is hosted by Adriene Hill, returning after having co-hosted the Economics series.


On May 10, 2018, a preview for Crash Course Engineering was uploaded. It is hosted by Dr. Shini Somara, returning after having hosted the Physics series, and will run for 46 episodes.

Other seriesEdit

Big HistoryEdit

In May 2014, John Green mentioned an upcoming 10-episode Crash Course season on Big History, funded by a grant from one of Bill Gates' organizations.[44] The series first aired on the channel of the Big History Project, rather than the Crash Course YouTube channel.

On August 19, 2014, the Big History Project channel began hosting episodes of a new co-hosted series, Crash Course Big History. This outlines the history of existence, from the Big Bang forward into the evolution of life. Both Green brothers host the series, with Emily Graslie participating as a guest host.[45]

On September 17, 2014, the first episode of Crash Course Big History was posted on the Crash Course YouTube channel, one month after its premiere on the Big History Project.

In March 2017, Emily Graslie noted on her Twitter feed that she would be participating in a new Big History miniseries.[46] The first episode of the second season was listed on the Crash Course channel on May 24, 2017; Graslie is the sole host for that season.[47]

Intellectual PropertyEdit

In February 2015, John Green announced that Crash Course producer Stan Muller would host a seven episode miniseries on intellectual property.[35]

Crash Course KidsEdit

On February 23, 2015, a new series, Crash Course Kids was announced through a video preview on its own YouTube channel. This series is hosted by Sabrina Cruz, known on YouTube as NerdyAndQuirky.[48]

Study SkillsEdit

On July 18, 2017, graphics team Thought Café tweeted an image of the Crash Course schedule which included Study Skills with Thomas Frank, set to start August 8.[49]


On March 5, 2018, the first episode in the Recess format was posted. According to its description, this will consist of "short, fully animated episodes [which] are going to pop up a few times a year and will shed light on amazing stories from past or current Crash Course subjects that for one reason or another didn't make it into the shows."

Human GeographyEdit

On October 12, 2016, the Crash Course YouTube channel uploaded a 90-second preview for Crash Course Human Geography. The course was to discuss 'what Human Geography isn't, and what it is, and discuss humans in the context of their world'. The series would have been hosted by Miriam Nielsen.

A premiere episode was posted on October 19, 2016, and a second the following week; however, both were removed on October 27. John Green posted to Twitter that "...we got important things wrong. We'll rework the series... And we'll bring a better series to you in a few months."[50] On October 31, 2016, John Green explained that the videos were removed due to "factual mistakes as well as too strident a tone." Green said it was caused by a rushed production stemming from staff and budgeting issues.[51]

In a Reddit AMA in October 2017, John Green indicated the course may not return for some time, stating "we don't feel like we've cracked it yet."[52]

Video releaseEdit

DVD box sets of the complete run of the Biology series and of season 1 of World History were made available for pre-order on October 31, 2013.[53] In June 2016, the show's official site launched, providing free offline downloads of all episodes of every series completed to date.[54]


  1. ^ Graslie is the sole host of the second season.
  2. ^ Clifford departed after the 29th episode, with Hill presenting the remainder solo.
  3. ^ Hosted on the Crash Course Kids channel.
  4. ^ Hosted on the DW عربية channel.
  5. ^ A partnership with Adobe and hosted on the Thought Café channel.


  1. ^ Pot, Justin (April 7, 2012). "Crash Course: Entertaining YouTube Courses On History & Biology". Make Use Of. Retrieved July 8, 2012.
  2. ^ Roetthers, Janko (February 16, 2012). "A first look at YouTube's new TV stars". GigaOM. Retrieved July 8, 2012.
  3. ^ Leib, Bart (March 23, 2012). "Scishow & Crash Course: Why Isn't School This Cool?". Wired. Retrieved July 8, 2012.
  4. ^ a b Talbot, Margaret (June 9, 2014). "The Teen Whisperer". Retrieved October 20, 2014.
  5. ^ "CrashCourse about". Retrieved May 26, 2017.
  6. ^ "Crash Course just hit 1 BILLION views!!". CrashCourse on Twitter. Twitter. Retrieved 15 February 2019.
  7. ^ Green, Hank (December 21, 2012). Meet the Team: The Missoula Office (And P4A and TheBrainScoop). Crash Course. YouTube. Retrieved February 5, 2013.
  8. ^ Green, John (December 2, 2011). Crash Course Preview. Crash Course. YouTube. Retrieved September 13, 2013.
  9. ^ a b Roettgers, Janko (February 1, 2012). "Cool for school: Education is a big hit on YouTube". GigaOM. Retrieved July 8, 2012.
  10. ^ Gutelle, Sam (October 16, 2012). "Barack Obama Watches The Vlogbrothers". Tubefilter. Retrieved October 23, 2012.
  11. ^ Gutelle, Sam (April 2, 2013). "John Green Talks 'Crash Course', 'Hank Games', And Hats In Reddit IamA". Tubefilter. Retrieved September 13, 2013.
  12. ^ Gutelle, Sam (July 17, 2013). "Hank Green Is Pissed Off About YouTube's Constant Changes". Tubefilter. Retrieved September 13, 2013.
  13. ^ Green, Hank (July 17, 2013). "A Chat with YouTube". hankschannel. YouTube. Retrieved September 13, 2013.
  14. ^ Eifler, Emily (August 20, 2013). "Crowdfunding Matures with a Lesson from Public Broadcasting". KQED. Retrieved November 30, 2018.
  15. ^ Gutelle, Sam (July 22, 2013). "Vlogbrothers Launch Subbable, A 'Pay What You Want' Video Platform". Tubefilter. Retrieved September 13, 2013.
  16. ^ a b Chmielewski, Dawn (23 January 2017). "Vlogbrothers Bring "Crash Course" Videos to PBS Digital Studios". Recode. Retrieved November 7, 2014.
  17. ^ Aranda, Michael. "Jellyfish". WhatImDoingRightNow. YouTube. Retrieved 10 April 2017.
  18. ^ Green, John and Hank (2 November 2017). "Awesome Sox Club, Pizzamas, PodCon Scholarship, and More!". Hank and John's Newsletter.
  19. ^ a b Green, John (February 27, 2014). A Long and Difficult Journey, or The Odyssey: Crash Course Literature 201. Crash Course Literature 2. YouTube. Retrieved April 6, 2014.
  20. ^ Higgins, Chris (February 9, 2012). "John Green's Crash Course in World History". mental_floss. Retrieved July 8, 2012.
  21. ^ "History Teacher Discovers Talent As Educational Web Writer". Columbia Grammar and Preparatory School. November 5, 2013. Archived from the original on February 22, 2014. Retrieved February 7, 2014.
  22. ^ Cicconet, Marcelo (April 7, 2013). "YouTube not just a site for entertainment, but education". Washington Square News. Retrieved April 25, 2013.
  23. ^ Young, Jeffrey R. (November 5, 2012). "Welcome to Star Scholar U., Where a Personal Brand Is the Credential". The Chronicle of Higher Education. Retrieved February 7, 2014.
  24. ^ Jaworski, Michelle (July 10, 2012). "How YouTube is revolutionizing education". The Daily Dot. Retrieved February 7, 2014.
  25. ^ Quinn, Kate (October 30, 2014). "YouTube's educational side". The Buffalo News. Archived from the original on March 5, 2016. Retrieved November 2, 2014.
  26. ^ Tepper, Allegra (July 24, 2012). "These 10 Videos Turn Tough Topics Into Child's Play - 4. CrashCourse World History: Islam, the Quran, and the Five Pillars All Without a Flamewar". Mashable. Retrieved August 9, 2012.
  27. ^ "John Green's Crash Course In Latin American History Covers Everything You Need To Know (VIDEO)". Huffington Post. September 1, 2012. Retrieved September 6, 2012.
  28. ^ Green, John. World History, Year 2 Preview. Crash Course. Retrieved June 28, 2014.
  29. ^ Green, John. Democracy, Authoritarian Capitalism, and China: Crash Course World History 230. Crash Course. Retrieved Apr 4, 2015.
  30. ^ Green, John. "Really excited about our partnership with @DeutscheWelle on Crash Course in Arabic". Twitter. Retrieved 19 January 2018.
  31. ^ a b Green, John (February 6, 2014). Obamanation: Crash Course US History #47. Crash Course. YouTube. Retrieved February 7, 2014.
  32. ^ Green, John. "Why I Won't Run For Office (vlog)". vlogbrothers. YouTube. Retrieved 4 April 2017.
  33. ^ Green, John. "New series of Crash Course Lit filming this summer!". Twitter. Retrieved 22 Jun 2017.
  34. ^ a b Green, Hank (November 7, 2014). New Crash Course and Pizzamas!. VlogBrothers. YouTube. Retrieved November 7, 2014.
  35. ^ a b "Crash Course Intellectual Property and Economics!". YouTube. February 18, 2015. Retrieved February 23, 2015.
  36. ^ Green, Hank (January 18, 2016). Crash Course Philosophy Preview. Crash Course. YouTube. Retrieved January 18, 2016.
  37. ^ Grantham, Nick (February 29, 2012). "Meet Two Brothers Who Bring Biology And History To Life". Fractus Learning. Retrieved July 8, 2012.
  38. ^ Tepper, Allegra (July 24, 2012). "These 10 Videos Turn Tough Topic Into Child's Play - 3. CrashCourse Biology: Comparative Anatomy". Mashable. Retrieved August 9, 2012.
  39. ^ Green, Hank (October 29, 2012). Ecology - Rules for Living on Earth: Crash Course Biology #40. Crash Course. YouTube. Retrieved October 30, 2012.
  40. ^ Green, Hank (February 4, 2013). Crash Course Chemistry Preview!. Crash Course. YouTube. Retrieved January 5, 2013.
  41. ^ Green, Hank (January 3, 2014). The Golden Gate Bridge Didn't Collapse!!. VlogBrothers. YouTube. Retrieved January 4, 2013.
  42. ^ Plait, Phil (January 8, 2015). "Crash Course Astronomy Premieres Thursday, Jan. 15!". Bad Astronomy. Slate. Retrieved January 8, 2015.
  43. ^ "Anonymous asked: Is Hank teaching crash course physics, or will someone else do it?". Tumblr. Retrieved 29 January 2016.
  44. ^ Green, John (May 20, 2014). Deserving. VlogBrothers. YouTube. Retrieved May 22, 2014.
  45. ^ "Big History Project - CrashCourse Videos". Big History Project. YouTube. Retrieved September 7, 2014.
  46. ^ Graslie, Emily. "I'm filming a mini-series of CC Big History!". Twitter. Retrieved March 8, 2017.
  47. ^ "Why Cosmic Evolution Matters: Crash Course Big History #201". Crash Course. YouTube. Retrieved 22 May 2017.
  48. ^ "Crash Course Kids Preview". YouTube. February 23, 2015. Retrieved February 23, 2015.
  49. ^ "So many @TheCrashCourse series are airing right now..." @thoughtcafe. Twitter. July 18, 2017. Retrieved July 18, 2017.
  50. ^ Green, John. "We're taking down the first two Crash Course Human Geography videos..." Twitter. Retrieved 27 October 2016.
  51. ^ Green, John. "A Note on CC Human Geography". YouTube. Retrieved 31 October 2016.
  52. ^ Green, John. "I'm John Green, author of The Fault in Our Stars and Turtles All the Way Down. I'm in a bus for the next eight hours. AMA". Reddit. Retrieved 17 October 2017.
  53. ^ DFTBA Records. "DFTBA - CrashCourse". Retrieved January 30, 2015.
  54. ^ "CRASH COURSE DOWNLOADS". Crash Course. Retrieved 28 June 2016.

External linksEdit