Crittenden proposed a package of six constitutional amendments, known as the Crittenden Compromise, that would forbid Congress from abolishing slavery in any state, protect slavery in federal territories south of the 36°30′ parallel, and prohibit it in territories north of that latitude. Crittenden's compromise proved unacceptable to both Northern Republicans and Southern Democrats, and it failed to win approval from the Committee of Thirteen. In another attempt to avert secession, leading politicians in the Lower North and Upper South organized the Peace Conference of 1861. The convention proposed a package of seven constitutional amendments that were largely similar to the Crittenden Compromise. On the last day of the 36th United States Congress, both the Crittenden Compromise and the separate plan proposed at the Peace Convention were rejected in the House and the Senate.