WHAT HAPPENED IN 1821.
Look what happened the 1821.

Missouri is admitted as the 24th U.S. state. (10. August 1821)

Jarvis Island is discovered by the crew of the ship, Eliza Frances. (21. August 1821)

The Treaty of Córdoba is signed in Córdoba, now in Veracruz, Mexico, concluding the Mexican War of Independence from Spain. (24. August 1821)

The University of Buenos Aires, Argentina, is officially opened. (26. August 1821)

Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica jointly declare independence from Spain. (15. September 1821)

Tripolitsa, Greece, is captured by Greek rebels during the Greek War of Independence. (23. September 1821)

Mexico gains its independence from Spain. (27. September 1821)

The government of general José de San Martín establishes the Peruvian Navy. (8. October 1821)

Cry of Independence by Rufina Alfaro at La Villa de Los Santos, Panama setting into motion a revolt which lead to Panama's independence from Spain and to it immediately becoming part of Colombia (10. November 1821)

Panama Independence Day: Panama separates from Spain and joins Gran Colombia. (28. November 1821)