What is the name of the economic system that developed along with the agricultural revolution and industrial revolution in europe?

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.

The explorer marco polo who visited china was from barcelona luxembourg rome venice

Why did nationalists feel that a unified italy made sense