- 1802 - Adolphe d'Archiac was born in Reims, France.
- 1930 - William Diller Matthew died.
- 1936 - Alexandr Rasnitsyn was born in Moscow, USSR.
- 1971 - Michael S. Engel was born in Creve Coeur, Missouri, USA.
- 2014 - Victoria M. Arbour and others described the new ankylosaurid genus and species Ziapelta sanjuanensis from the Campanian Kirtland Formation of New Mexico, USA.