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Columbus brought back small amounts of gold as well as native birds and plants.

On August 3, 1492, Columbus set sail from Spain to find an all-water route to Asia. ... Columbus brought back small amounts of gold as well as native birds and plants to show the richness of the continent he believed to be Asia.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

b) the confederacy had to pay all union war expenses.