OREGON COUNTRY Adama-Onis Treaty Line, 1819 SPANISH POSSESSIONS Document 3 MICHIGAN UNORGANIZED TERRITORY Closed to avery by Missouri Compromise Open to slavery by Missoun Compromise Free states and territories Slave states MO 38-30 Missour Compromise Line Adelded BRITISH NORTH AMERICA (CANADA) TERA OHIO IND D.C. VIRGINIA MASS AL CONN KY N. CAROLIN TENN CARCLINA SALA GA LA ARKANSAS TERRITORY FLORIDA TERRITORY Ceded by Spain, rais 800 Mi Komal Based on this document, what was one effort used to address slavery in the western territories.
