Massachusetts became the first US state to legalize same-sex marriage.
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The first televised baseball game was broadcasted on NBC, featuring Princeton defeating Colombia 2-1.
Great Britain passed the Molasses Act.
The first Tim Hortons opened in Hamilton, Ontario, by NHL player Tim Horton.
Blurryface, the fourth studio album by Twenty One Pilots, was released.
The diaries of Lord Byron were burned by six of the poet's friends.