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Bank Michigan, History
The following are major historical events for Bank Michigan, including mergers and acquisitions.
| 1907-10-01 | Institution established: Original name:The Onsted State Bank | |
| 2004-08-09 | Changed name to OSB Community Bank | |
| 2004-08-09 | Moved bank headquarters from ONSTED, MI to BROOKLYN, MI | |
| 2019-07-01 | Changed name to Bank Michigan |