when did the up become part of michigan
Upper Peninsula of Michigan The people of Michigan approved a constitution in May 1835 and elected state officials in late autumn 1835. Although the state government was not yet recognized by the United States Congress, the territorial government effectively ceased to exist. A constitutional convention of the state legislature refused a compromise to accept the full Upper Peninsula in exchange for ceding the Toledo Strip to Ohio. A second convention, hastily convened by Governor Stevens Thomson Mason, consisting primarily of Mason supporters, agreed in December 1836 to accept the U.P. in exchange for the Toledo Strip.