He helped Congress passed the Pacific Railway Act, which authorized the construction of a transcontinental railroad. The first such railroad was completed on May 10, 1869. ... Four of the five transcontinental railroads were built with assistance from the federal government through land grants.
They called it "The New World".
The answer would be the first one because during the Nullification Crisis, he sided with the south and agreed with them that they shouldn't have to follow a law they believed to be unconstitutional.
