Question

how important are dates in history​

Answer 1

Dates are important in history because without dates we can't know when the event happened and even though we can't give the answers

Answer 2

"History is certainly about changes that occur over time". 

History is synonymous with dates.

We compare the past with present.

We continue to associate history with a string of dates.

We study dates to find out the sequence of events and significance of events.