<Table> <Tr> <Td> </Td> <Td> In 1907, a plaque commemorating the "first permanent settlement in the territory northwest of the Ohio" and the Northwest Ordinance was placed on the exterior of the Federal Hall National Monument at the corner of Broad and Nassau Streets in Lower Manhattan . Federal Hall served as the nation's Seat of government in 1787, when the Northwrest Ordinance was passed into law . </Td> </Tr> <Tr> <Td> </Td> <Td> On July 13, 1937, the U.S. Post Office issued a 3 - cent commemorative stamp to mark the 150th anniversary of the the Northwest Territory as defined by the Ordinance of 1787 . The engraving on the stamp depicts a map of the United States at the time between the figures of Manasseh Cutler (left) and Rufus Putnam (right). </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> In 1907, a plaque commemorating the "first permanent settlement in the territory northwest of the Ohio" and the Northwest Ordinance was placed on the exterior of the Federal Hall National Monument at the corner of Broad and Nassau Streets in Lower Manhattan . Federal Hall served as the nation's Seat of government in 1787, when the Northwrest Ordinance was passed into law . </Td> </Tr> <Tr> <Td> </Td> <Td> On July 13, 1937, the U.S. Post Office issued a 3 - cent commemorative stamp to mark the 150th anniversary of the the Northwest Territory as defined by the Ordinance of 1787 . The engraving on the stamp depicts a map of the United States at the time between the figures of Manasseh Cutler (left) and Rufus Putnam (right). </Td> </Tr>

Did ohio have to follow the northwest ordinance