On Nov. 7, 1917, Russia's Bolshevik Revolution took place as forces led by Vladimir Ilyich Lenin<span> overthrew the provisional government of </span>Alexander Kerensky<span>. The provisional government came to power after the February Revolution resulted in the Russian monarchy being overthrown in March 1917</span>
I believe the answer to this could be C.XVII
Cesar revises the Roman calendar is first then I’m pretty sure he lead his army into Rome and then he conquers Gaul If not then it’s Cesar revise is the Roman calendar then Julius Caesar conquers Gaul then Cesar leads his army into Rome