Answer:
Pre-History is historical study of the time before any sort of written records (So basically, just before Mesopotamian/Egyptian/Ancient Chinese eras). This sort of topic would include the iron age, caveman times, e.t.c.
Then after that there is Anicent History (from around the time of the Mesopotamian/Assyrian empires, Beginning of the Dark ages and collapse of Roman Empire)
Normal history starts around this time, and then comes modern history, which is probably from 1880-present