Portal:Paleontology/On this day/December 21
- 1795 - Francisco Javier Muñiz was born in San Isidro, Argentina.
- 1824 - James Parkinson died of a stroke in Langthorne, England.
- 1831 - The HMS Beagle, carrying Charles Darwin, attempted to embark on its second voyage, but was driven back by foul weather.
- 1889 - Eugène Eudes-Deslongchamps died.
- 1935 - Rinchen Barsbold was born in Ulan Bator, Mongolia.