it was called the gleiwitz incident
Spanish minister Do Luis de Onis and U.S. Secretary of State John Quincy Adams sign the Florida Purchase Treaty, in which Spain agrees to cede the remainder of its old province of Florida to the United States. ... Florida was organized as a U.S. territory in 1822 and was admitted into the Union as a slave state in 1845.
Website history channel
In 1859 50% of the nations wealth, stocks, bonds, land, cash was in slaves owned by southerners. They lost everything. The north pay less on the south slavery was not finish and they where trying to go to the north for better jobs and freedom the south had force slaves to work.
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very poor conditions, diseased boats, lack of sanitary food and water, lots of rats where food was stored...