Question

Over time, historians have changed the ways they study the past because they have to

Answer 1

Step-by-step explanation:

History is more than just studying what happened in the past. When you study a historical event, you also study a society's culture, religion, politics, and economics. ... When they study the past, historians ask themselves questions. The answers to the questions help historians draw conclusions about the past.

Answer 2

Historians are changing their approach toward history because history is not just about dates and historical events. All the events are related to the culture of the society and there are many political and economic factors for an it. Studying past and to get the true answers about the past events one needs to look into these matters also. So they changed their approach and all these factors are taken into consideration.