American explorer Charles Wilkes discovered the Shackleton Ice Shelf in Antarctica.
Source
The Austrian Civil War came to an end after four days of bloodshed.
The first known British check was written for the amount of £400.
NASA's Explorer 9 satellite launched from the Wallops Flight Facility in eastern Virginia.
Egyptian King Tutankhamun's coffin was discovered.
The first commercial helicopter, Sikorsky S51, had its first test flight.