The Russian Revolution of 1917. The Russian Revolution of 1917 involved the collapse of an empire under Tsar Nicholas II and the rise of Marxian socialism under Lenin and his Bolsheviks. It sparked the beginning of a new era in Russia that had effects on countries around the world.
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Constantine was the son of Flavius Constantius, an Illyrian army officer who became one of the four emperors of the Tetrarchy. Born in Naissus, Dacia Mediterranea, he became the Western emperor in 312 and the sole Roman emperor in 324. Constantine was also the first emperor to adhere to Christianity. He issued an edict that protected Christians in the empire and converted to Christianity on his deathbed in 337.
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