Editing AD 40 (section)

== Events ==

=== By place ===

==== Roman Empire ====
* Emperor [[Caligula]] is [[consul]] without colleague.
* Caligula starts on a campaign to conquer [[Great Britain|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 civilization|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.
* Construction begins on the [[Pont du Gard]] [[Roman aqueduct|aqueduct]] in [[Gallia Narbonensis]] (approximate date).<ref>{{cite journal|last1=Fabre|first1=Guilhem|last2=Fiches|first2=Jean-Luc|last3=Paillet|first3=Jean-Louis|year=1991|title=Interdisciplinary Research on the Aqueduct of Nimes and the Pont du Gard|journal=Journal of Roman Archaeology|volume=4|pages=63–88|doi=10.1017/S104775940001549X}}</ref>

==== Europe ====
* The Germanic [[Quadi]] tribe begin settling in present-day [[Moravia]] and [[Slovakia]].

==== Parthia ====
* [[Vardanes I]] becomes king of [[Parthia]], opposed by his brother [[Gotarzes II of Parthia|Gotarzes II]].

==== Vietnam ====
* The [[Vietnam]]ese [[Trưng Sisters]] rebel against the rule of the Chinese Emperor [[Emperor Guangwu of Han|Guang Wu of Han]].

=== By topic ===

==== Arts and sciences ====
* [[Philo]] teaches that all men are born free.

==== Religion ====
* Christianity comes to [[Egypt]] as a church is founded in [[Alexandria]]. [[Mark the Evangelist]] founds the [[Church of Alexandria]] as the first Patriarch (traditional date).
* An early Christian church is erected at [[Ancient Corinth|Corinth]] (most probable date).
* The traditional date of [[Saint James the Great]] meeting [[Our Lady of the Pillar]] in [[Santiago de Compostela|Spain]]