17 September, 1809 – Treaty of Fredrikshamn is signed between Sweden and Russia

Also known as the Treaty of Hamina, it concluded the Finnish War and ceded Swedish territories, which later formed Finland to Russia.

18 September, 1959 – Vanguard 3 is launched into Earth's orbit

The geocentric satellite was launched into Earth's orbit by a Vanguard rocket, built by Glenn L. Martin Company, which is now known as Lockheed-Martin.

19 September, 1983 – Saint Kitts and Nevis gain their Independence from the British Crown

The Europeans set foot on the Island in the West Indies in the late 15th century during an expedition led by Columbus. In 1713, the control over the islands was passed from the French to the British.

20 September, 1984 – The Cosby Show airs for the first time

The popular TV sitcom followed the lives of an African-American family. The show ran for eight years on NBC and was largely based on the standup comedy of Bill Cosby, who played the father in the show.

21 September, 1937 – JRR Tolkien's The Hobbit is published for the first time

The Hobbit is a young adult fantasy novel that follows the adventures of the hobbit Bilbo Baggins as he traverses through Middle Earth to find treasure guarded by a dragon named Smaug.

22 September, 1960 – Mali Federation becomes Mali

In August 1960, Senegal opted out of the Mali Federation allowing the federation to take on the name of Mali.

23 September, 1889 – Nintendo is Founded

The Japanese gaming company was created as a card company called Nintendo Koppai. The company originally produced and sold playing cards called Hanafuda.