WHAT HAPPENED IN 1843.
Look what happened the 1843.

The first minstrel show in the United States, The Virginia Minstrels, opens (Bowery Amphitheatre in New York City). (6. February 1843)

Giuseppe Verdi's opera I Lombardi alla prima crociata receives its first performance in Milan, Italy. (11. February 1843)

Provisional Cession of the Hawaiian or Sandwich Islands established by Lord George Paulet. (25. February 1843)

The first major wagon train heading for the Pacific Northwest sets out on the Oregon Trail with one thousand pioneers from Elm Grove, Missouri. (16. May 1843)

The Disruption in Edinburgh of the Free Church of Scotland from the Church of Scotland. (18. May 1843)

The Wairau Affray, the first serious clash of arms between Māori and British settlers in the New Zealand Wars, takes place. (17. June 1843)

Brunel's steamship the SS Great Britain is launched, becoming the first ocean-going craft with an iron hull or screw propeller and becoming the largest vessel afloat in the world. (19. July 1843)

The Cathedral of Our Lady of Peace in Honolulu, Hawaii is dedicated. Now the cathedral of the Roman Catholic Diocese of Honolulu, it is the oldest Roman Catholic cathedral in continuous use in the United States. (15. August 1843)

Tivoli Gardens, one of the oldest still intact amusement parks in the world, opens in Copenhagen, Denmark. (15. August 1843)

The Greek Army rebels (OS date: September 3) against the autocratic rule of king Otto of Greece, demanding the granting of a constitution. (13. September 1843)

John Williams Wilson takes possession of the Strait of Magellan on behalf of the newly independent Chilean government. (21. September 1843)

The News of the World tabloid begins publication in London. (1. October 1843)

In New York City, Henry Jones and 11 others found B'nai B'rith (the oldest Jewish service organization in the world). (13. October 1843)

The British arrest the Irish nationalist Daniel O'Connell for conspiracy to commit crimes. (14. October 1843)

Sir William Rowan Hamilton comes up with the idea of quaternions, a non-commutative extension of complex numbers. (16. October 1843)

Ka Lā Hui (Hawaiian Independence Day): The Kingdom of Hawaii is officially recognized by the United Kingdom and France as an independent nation. (28. November 1843)