How does 1776 and the 1870s in the united states compare?

"on july 4th 1776 the declaration of indapendace is adopted. in august 1786 shays rebellium erupts.in 1787 the delegates meet in philidelphia to draft the constitution. in 1789 george washington was elected as president. december 15th 1791, the bill of rights is ratified. in 1820 the missouri compromise is created. in 1831, william loyd garrison begins publishing the liberator. in 1852, uncle toms cabin is published. in 1854, the kansas nebraska act is passed in 1859, harpers farry is attacked. november 6 1860, abraham lincoln is elected president. in 1861, missisippi, florida, albama, georgia and louisiana, secede from the us to create the confederate states of america. the civil war took place from 1861 to 1865.on april 14 1865 lincoln is assasinated. in 1870the 15th amendment is ratified giving african americans the right to vote.i dont know if this helps...

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mass production/ assembly line production

answer; i believe that the correct answer is (tobacco);