And the division standard of world historical period is:

Prehistoric period: the primitive social period from the appearance of human beings to slavery in 4000 BC.

Ancient history: Slavery countries appeared in ancient Egypt around 4000 BC, the Western Roman Empire perished in 476, and slavery collapsed in Western Europe.

Medieval history: from the demise of the Western Roman Empire in 476 to the outbreak of the British bourgeois revolution in 1640 (that is, medieval history).

Modern history: British bourgeois revolution broke out in 1640 to Russian October revolution broke out in 19 17.

Modern history: since 19 17 Russian October Revolution.

By the way, there is no modern history in world history. Because China's feudal system has a history of more than 2,000 years, while Europe's feudal system was established more than 7,800 years later than China's 1000 years, and entered the modern society 200 years earlier than China.