The Richard Fairbanks Tavern and Post Office in Massachusetts became the first American colonial post office.
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Senator Brooks from South Carolina used a cane to hit a Massachusetts Senator, Charles Sumner, after Sumner criticized slave owners.
Reddit was founded in Medford, Massachusetts.
A gasoline-powered car was tested in Springfield, Massachusetts, for the first time in the US.
Massachusetts became the first US state to legalize same-sex marriage.
The first recorded dam disaster happened in the US.
