What gets preserved in history? What doesn’t?why?

It preserves the historic, architectural, and aesthetic character and heritage of a community or area, and helps to provide a sense of place and continuity. As suburban sprawl and roadside development make more and more places look the same, it becomes important for communities to keep their identities intact.

Explanation:

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.