John William Dawson, Canadian geologist and academic (d. 1899)
Sir John William Dawson (1820–1899) was a Canadian geologist and university administrator.

1820Oct, 13
John William Dawson
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Events on 1820
- 3Mar
Missouri Compromise
The U.S. Congress passes the Missouri Compromise. - 6Mar
Louisiana Purchase
The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, brings Maine into the Union as a free state, and makes the rest of the northern part of the Louisiana Purchase territory slavery-free. - 24Aug
History of Portugal
Constitutionalist insurrection at Oporto, Portugal. - 15Sep
Lisbon
Constitutionalist revolution in Lisbon, Portugal. - 17Nov
Antarctic Peninsula
Captain Nathaniel Palmer becomes the first American to see Antarctica. (The Palmer Peninsula is later named after him.)