July 4: Central line reaches Dexter from Ann Arbor. [MHS] [MCR-75] dates this as June 30, 1841.
September: Central line reaches Chelsea. [DWS]
Autumn: The Detroit & Milwaukee extends their line from Royal Oak to Birmingham. [MCR-75] Also listed in 1838 by other sources.
December 29: The Central road reaches Jackson from Chelsea. [MCR-75/MDOT/AAD]
Time line Key:
The following sources are utilized in this website. [SOURCE-YEAR-MMDD-PG]: