40s

Millennium:	1st millennium
Centuries:	1st century BC – 1st century – 2nd century
Decades:	10s 20s 30s – 40s – 50s 60s 70s
Years:	40 41 42 43 44 45 46 47 48 49
Categories:	Births – Deaths – Architecture Establishments – Disestablishments

Events

• The Roman emperor Caligula assassinated (41), succeeded by his uncle Claudius
• Roman conquest of Britain begins under Aulus Plautius, 43