Spain legalized same-sex marriage.
This made Spain the fourth country in the world to do so.
Source
NASA launched Intelsat VA F-11 into orbit.
An unidentified object thought to be a meteoroid or comet smashed into a remote forest in Siberia and destroyed 21,528 square feet of land.
The United States Congress passed the Meat Inspection Act and Pure Food and Drug Act.
Tower Bridge officially opened in London.
Charles Blondin became the first person to cross Niagara Falls by walking across a tightrope.
