MISSISSIPPI admitted into the Union,--Dec. 10.

1818. JACKSON seized Spanish forts in Florida.

JOINT occupation of Oregon by United States and Great Britain agreed upon.

PENSACOLA, Fla., seized by Jackson; Spanish officials sent to Cuba,--May 25.

ILLINOIS admitted into the Union,--Dec. 8.

1819. FLORIDA ceded to the United States by Spain,--Feb. 22.

ARKANSAS TERRITORY formed,---July 4.

ALABAMA admitted into the Union,--Dec. 14.

1820. ACCESSION of George IV. to throne of Great Britain,--Jan. 29.

MISSOURI COMPROMISE ACT passed,--March 3.