How did the economic success of the Erie Canal affect westward expansion?

richard milhous nixon (january 9, 1913 – april 22, 1994) was the 37th president of the united states, serving from 1969 to 1974, when he became the only president to resign (quit). he is also known for corruption and the watergate scandal which resulted in the public losing trust in him and his resignation.

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.