The Ordinance of 1784 - Written by Thomas Jefferson, divided the Old Northwest into territories that would become the states when their population equaled that of the smallest existing state.
The Land Ordinance of 1785 - Promoted settlement by mandating a rectangular grid system of surveying that could be completed quickly, and by encouraging large-scale land purchases.
The Northwest Ordinance of 1787 - Created the territories that would eventually become the states of Ohio, Indiana, Illinois, Michigan, and Wisconsin. The ordinance prohibited slavery in those states, and used funds from land-sales for the support of schools. When population reached 5,000 free adult men, the citizens could elect a territorial legislature. At 60,000, the legislature could ratify a constitution and apply to join the confederation.