Portal:History of science/Selected anniversaries/May 5
- 1809 - Mary Kies becomes the first woman awarded a U.S. patent, for a technique of weaving straw with silk and thread.
- 1833 - Birth of Ferdinand von Richthofen, German geographer (d. 1905)
- 1859 - Death of Peter Gustav Lejeune Dirichlet, German mathematician (b. 1805)
- 1892 - Death of August Wilhelm von Hofmann, German chemist (b. 1818)
- 1921 - Birth of Arthur Leonard Schawlow, American physicist and Nobel Prize laureate (d. 1999)
- 1925 - In Dayton, Tennessee, John T. Scopes is served an arrest warrant for teaching evolution in violation of the Butler Act.
- 1961 - Alan Shepard becomes the first American to travel into space, making a sub-orbital flight of 15 minutes on the MR-3 mission.