40 facts for kids

This page is about the year 40. For the actual number, see 40 (number).

Millennium:	1st millennium
Centuries:	1st century BC – 1st century – 2nd century
Decades:	10s  20s  30s  – 40s –  50s  60s  70s
Years:	37 38 39 – 40 – 41 42 43

40 in other calendars

Gregorian calendar	40 XL
Ab urbe condita	793
Armenian calendar	N/A
Assyrian calendar	4790
Bahá'í calendar	-1804–-1803
Bengali calendar	-553
Berber calendar	990
English Regnal year	N/A
Buddhist calendar	584
Burmese calendar	-598
Byzantine calendar	5548–5549
Chinese calendar	己亥年十一月廿八日 (2676/2736-11-28) — to — 庚子年十一月初九日 (2677/2737-11-9)
Coptic calendar	-244–-243
Ethiopian calendar	32–33
Hebrew calendar	3800–3801
Hindu calendars
- Vikram Samvat	96–97
- Shaka Samvat	N/A
- Kali Yuga	3141–3142
Holocene calendar	10040
Iranian calendar	582 BP – 581 BP
Islamic calendar	600 BH – 599 BH
Japanese calendar
Korean calendar	2373
Minguo calendar	1872 before ROC 民前1872年
Thai solar calendar	583

Year 40 (XL) was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus without colleague.

Events

Roman Empire

• The emperor Caligula is consul without colleague.
• Caligula starts a campaign to conquer Britain. It fails miserably. He names himself the winner.
• Noricum and Mauretania are added 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. According to legend, this is when he appointed his horse, Incitatus, a senator.
• Approximate date of start of construction on the Pont du Gard aqueduct in Gallia Narbonensis.
• Philo teaches that all men are born free.
• An early Christian church is erected at Corinth (most probable date).

Europe

• The Germanic Quadi tribe begin settling in present-day Moravia and Slovakia.

Asia

• Vardanes I becomes king of Parthia. He was opposed by his brother Gotarzes II.
• The Vietnamese Trung sisters rebel against the rule of the Chinese Emperor Guangwu of Han.

Africa

• Christianity comes to Egypt. Mark the Evangelist founds the Coptic Orthodox Church as the first pope.

Births

• July 13 – Gnaeus Julius Agricola, Roman governor of Britain (d. 93 AD)
• Pedanius Dioscorides, Greek physician (approximate date) (d. 90 AD)
• Frontinus, Roman general and military author (approximate date) (d. 103)
• Dio Chrysostom, Greek philosopher and historian (approximate date d. c. 120)
• Claudia Octavia, daughter of Claudius and Messalina (d. 62)
• Empress Ma of the Han Dynasty (d. 79)

Deaths

• January – Gnaeus Domitius Ahenobarbus, husband of Agrippina the younger, brother-in-law of Caligula (b. 17 BC)
• Ptolemy of Mauretania (b. 1 BC)