Which innovation had the GREATEST impact on westward migration immediately after the American Civil War?

Responses
A telephonetelephone
B electricityelectricity
C steam-powered boatssteam-powered boats
D transcontinental railroad

1 answer

The innovation that had the GREATEST impact on westward migration immediately after the American Civil War was the D transcontinental railroad. The completion of the transcontinental railroad in 1869 greatly facilitated travel and transport across the country, making it much easier and faster for people to move westward.