Which early american civilization built bridges made of earth or causeways to connect an island to the mainland

Why did the north agree to the missouri compromise? a.) it allowed maine to enter the union as a free state. b.) it repealed the fugitive slave law. c.) it allowed california to enter the union as a free state. d.) it banned slavery in the northwest territory.

What was the result on the u.s. economy because of the major changes in atlantic shipping prior to and during the war of 1812?

Why does benjamin martin eventually join the continental army