Question

How do historians divife the past into periods? Do they face any priblems?

Answer 1

Historians divide the past into periods based on the economic and social factors which characterize them. In doing so they are faced with two problems. First, economic and social changes keep taking place hence definite boundaries cannot be drawn. Second, these periods are compared with modernity.

Answer 2

Historians divided the history of India into three periods "Hindu" ,"Muslim" and "British".
No they didn't face any problems and no other significant developments