The Toledo War was a boundary controversy between Ohio and Michigan, USA, which came to a head in 1835, just previous to Michigan's application for admission to the Union. The controversy was over that territory which contained the city of Toledo, and its history may be traced back to the ordinance of 1787 respecting the division of the Northwest Territory. In 1835 Ohio proposed to assume control of the disputed tract. Michigan responded by making such action highly penal, and appealed to the Federal Government. An armed collision seemed imminent. Finally it was agreed that Michigan should be admitted to the Union and awarded certain territory in the north, provided she would give up her clearly rightful claim to the Toledo country. Research Toledo War