The Acts of Union were passed, officially uniting England and Scotland as one country.
Source
The Treaty of New Echota was signed.
Scottish inventor John Logie Baird changed the world of communication and entertainment forever when he demonstrated television for the first time.
The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
Law No. 38 in Iceland was approved, making abortion legal.
The 'Don't Ask Don't Tell' policy was repealed.