What do you mean by impact? That happened currently or in history back then
The fugitive slave act was passed (a) as part of the compromise in 1850. The compromise was reached as an attempt to avert a crisis between North and South America. The issue of slavery had caused deep divisions between the North and South of America. The Fugitive Slave Act was a means of forcing the return of escaped slaves to their owners; even if the slaves had escaped to other states.
The Southern Plantations Owners (a) group supported The Fugitive Slave Act.
South Carolina (a) was the first state to secede.
The Norman invasion of England in 1066 :)