The Leavenworth Constitution was one of four Kansas state constitutions proposed during the era of Bleeding Kansas. The Leavenworth Constitution was drafted by a convention of Free-Staters, and was the most progressive of the four proposed constitutions. The conspicuous aspects of this Constitution were a Bill of Rights that referred to "all men" (making no distinction between the rights of white men and African-American men), the banning of slavery from the state, and a basic framework for the rights of women.