Michigan becomes a state 1827
https://www.clickondetroit.com/all-about-michigan/2019/01/26/how-michigan-kind-of-sort-of-illegitimately-became-a-state-on-jan-26-1837/?fbclid=IwAR3Cw9ML-K599YuF6u2MmlZ4iANsAWbG2-11id_c1BhXoQZMbgwzR3zhoSc
There are some great maps at this site.