what was the extent to which the Civil War fostered change in the United States economy in the period from 1861 to 1900.

From 1865 to 1900, improvements and new technology such as the transcontinental railroad, refrigerated car, and the assembly line fostered great change in American industry.

Explanation:

During this period, the economic change most fostered by the Civil War included (1) an end to slavery; (2) an increase in the need for cheap labor to work in the factories; and (3) an increase in railroad building.

Explanation:

1)an end to slavery.2)an increase in the need for cheap labor to work in the factories; and (3) an increase in railroad building.

answer: they arrived in new york.

#1 im pretty sure its a.