What was the strongest motivation for the Spanish explorers to come to the New World?

The approval of is the states was needed to ratify the constitution

The first settlement created by the pilgrims in 1620, came for religious freedom. i'm failing history

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.