Why is it useful for historians to base certain studies on the analysis of geographic regions?

Historic processes are linked to a specific geographic space which is usually regional.

Explanation:

Geographic and historical studies are two very related fields, therefore many historic studies need to use geographic analysis on the region they Will study.

A study on a Geographic region Will never be complete without its historic context. For example: When Thomas Jefferson wrote the “History of the Expedition Under the Command of Captain Lewis and Clark to The Sources of The Missouri” in 1814, he used analysis on the Missouri region, its landscapes, rivers, etc. Not only to portray and describe the region but to have a better understanding of why the expedition and the western expansion were so important to the history of the United States.

what are the choices?

b.unemployment reached nearly 25 percent.