Adventures of Huckleberry Finn by Mark Twain was first published in the UK and Canada.
John B. Meyenberg from St. Louis, Missouri, patented powdered milk.
The Royal Observatory in Greenwich, UK, was adopted as the world's Prime Meridian.
Inventor George Eastman patented his 35mm photographic film in the US.
Foundations were placed on Bedloe's Island, New York City, to become home of the Statue of Liberty.
The world's first stock index was published.
The first volume of the Oxford English Dictionary was published.
Canada's last-ever sighting of the Eastern Cougar was found in Ontario.
