Which two factors caused many americans to migrate to the west in the mid-nineteenth century?

first paragraph (and busy all the night ,with a silence deep and white )

the federalist party which advocated strong centralization dominated the united states government till 1800. so 1800 election transformed the power from one party to another party for the first time and was thus a turning point in american history. so jefferson called it "revolution of 1800".

explanation: