August 31
- (www.clubs.psu.edu/ aegsa/rome/ aug26.htm) pridie Kalendas SeptemberA.D. 12 Birthday of Caligula (aka Caius Caesar Germanicus).
A.D. 40 Caligula returned from his victory over the seashells.
A.D. 161 Emperor Commodus born in Lanuvium.
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