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AD 40 (XL) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus without colleague (or, less frequently, year 793 Ab urbe condita). The denomination AD 40 for this year has been used since the Early Middle Ages, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
|Gregorian calendar||AD 40|
|Ab urbe condita||793|
|Balinese saka calendar||N/A|
|Chinese calendar||己亥年 (Earth Pig)|
2736 or 2676
— to —
庚子年 (Metal Rat)
2737 or 2677
|Coptic calendar||−244 – −243|
|- Vikram Samvat||96–97|
|- Shaka Samvat||N/A|
|- Kali Yuga||3140–3141|
|Iranian calendar||582 BP – 581 BP|
|Islamic calendar||600 BH – 599 BH|
|Julian calendar||AD 40|
|Minguo calendar||1872 before ROC|
|Seleucid era||351/352 AG|
|Thai solar calendar||582–583|
166 or −215 or −987
— to —
167 or −214 or −986
- Emperor Caligula is consul without colleague.
- Caligula starts on a campaign to conquer Britain, which fails miserably. He declares himself victorious regardless.
- Noricum and Mauretania are incorporated into the Roman Empire.
- Caligula reforms the principatus into a Hellenistic Autocracy. He distributes honors carelessly, declares himself a god and orders that all the heads of the Greek deity statues be replaced by his. He also appoints his horse, Incitatus, a senator.
- Approximate date of start of construction on the Pont du Gard aqueduct in Gallia Narbonensis.
Arts and sciencesEdit
- Philo teaches that all men are born free.
- June 13 – Gnaeus Julius Agricola, Roman governor (d. AD 93)
- Claudia Octavia, daughter of Claudius and Messalina (d. AD 62)
- Dio Chrysostom, Greek philosopher and historian (d. c. 115)
- Ma, Chinese empress of the Han Dynasty (d. AD 79)
- Pedanius Dioscorides, Greek physician and pharmacologist (d. AD 90)
- Sextus Julius Frontinus, Roman general and military author (d. 103)
- Titus Petronius Secundus, Roman prefect (d. AD 97)
- Fabre, Guilhem; Fiches, Jean-Luc; Paillet, Jean-Louis (1991). "Interdisciplinary Research on the Aqueduct of Nimes and the Pont du Gard". Journal of Roman Archaeology. 4: 63–88. doi:10.1017/S104775940001549X.
- Kvint, Vladimir (2015). Strategy for the Global Market: Theory and Practical Applications. Routledge. p. 8. ISBN 9781317485575.