Californian Judge Vaughn Walker overturned the same-sex marriage ban.
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The Treaty of Sistova was signed, which ended the Ottoman–Habsburg wars.
The United States of America declared neutrality at the beginning of World War I.
French monk Dom Pierre Pérignon accidentally made champagne.
Miss Piggy and Kermit the Frog took to Twitter to tell the public that they had broken up.
A galaxy named 'Dwingeloo 1' was discovered to be just 10 million light-years from our own.