What was one effect of the 3/5th compromise

The Three-Fifths compromise gave southern states disproportionate representation in the House of Representatives relative to free states, which helped the southern states to preserve slavery.

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.