1828 - 1860, states' rights issue (aug 19, 1828 – feb 19, 1860)
Nullifier party was founded on 1828 in South Carolina by John C. Calhoun. It was a states rights party, which supported Kentucky and Virginia Resolutions meaning that states could resist federal laws.
Added to timeline:
Timeline: Causes of the American Civil war by Veera Rakkolainen