Answer:
Slavery
Explanation:The United States became a continental nation with the purchase of Louisiana from France in 1803 and the settlement of the lands beyond the Appalachian Mountains. Westward expansion fueled conflict with Native populations and led to their forced removal. By 1820, 2 million Americans lived west of the Appalachians, out of a total national population of 10 million. The regional cultures that had developed along the Atlantic Coast—New England, Middle Atlantic, Chesapeake, and Carolinas—were transplanted into the Old Northwest (Ohio, Indiana, Illinois, Michigan, and Wisconsin) and the Old Southwest (Arkansas, Kentucky, Louisiana, Missouri, Tennessee, and Texas). But although Americans had begun to identify themselves as a nation, they were divided by sectional interests that deepened with rapid industrialization and the question of slavery.
I believe the answer is:
<span>to reveal past contributions of civilizations
to connect the past to the present
to recognize patterns
By knowing all the things above, future society could learn from the past society and started to make efforts to prevent the bad decision that made in the past from reoccurring. This would help the society to continue developing without facing unnecessary setbacks.</span>
Robert S<span>. </span>McNamara<span>. Was the </span>secretary<span> of </span>defense<span> under Kennedy. He helped develop the flexible response policy. He was against the war in </span>Vietnam<span> and was removed from 1964 Congressional resolution that authorized President Johnson to commit </span>US troops<span> to south </span>vietnam<span> and fight </span>a<span> war against north </span>Vietnam<span>.</span>
Answer:
The impact theory is one theory about why the dinosaurs went extinct.
Explanation:
