June 15: Longest Border

On this day in history..

King John places his seal on the Magna Carta in 1215.
Wat Tyler is killed during a meeting with King Richard II in 1381.
Charles Goodyear receives a patent for vulcanization of rubber in 1844.
Stuart completes a ride around the Union army in 1862.
Jon Alcock and Arthur Brown land after completing the first trans Atlantic flight in 1919.

Also On This Day...

in 1846 the Oregon Treaty establishes the border between Canada and the United States. While difficult to know for sure, this border is often hailed as the longest unguarded border, the longest uncontested border or in terms of time the longest unguarded, undisputed border.