Richard Carlisle, of London, arrested for reprinting Paine's "Age of Reason." Velocipedes, hobby-horses, and other forerunners of the bicycle became popular. Oersted, of Copenhagen, made important discoveries in electromagnetism.

Queen Victoria born; James Watt, Scottish inventor; General Blücher, Prussian soldier; and Warren Hastings, first governor-general of India, died.

RULERS—The same as in the previous year.

1820

Riego's revolt in Spain failed, but was followed by other movements in favor of liberalism. In Madrid, the prison of the Inquisition was stormed, and the political prisoners it contained set at liberty. King Ferdinand was forced to convoke the Cortes and agree to restore the comparatively liberal constitution of 1812. Divorce suit of George IV of England before the House of Lords; when the prosecutor had just started his opening address, the peers rose suddenly and rushed out in a body to witness an eclipse of the sun; the suit failed. Sir Walter Scott was the first baronet created by George IV.

The Duc de Berry, heir presumptive to the French throne, assassinated by Louvel, February 13. The Carbonari, or charcoal burners, forced Ferdinand I, King of Naples, to grant a constitution, which he swore to uphold, but almost immediately repudiated. The people of Portugal also rebelled and obtained a constitution. Russia sold to Spain a fleet of fighting vessels, which proved later to consist of rotting hulks.

In the United States, the Missouri Compromise Bill was passed and signed by Monroe, who was reelected to a second term in the Presidency. Maine was admitted as a State, and Spain agreed to cede her title to Florida for the sum of five million dollars.

Hydropathy introduced by Priessnitz. Ampère discovered the galvanometer. Caffeine separated by Oudry, and quinin by Pelletier and Caventou.

George III, King of England; Benjamin West, American artist; Henry Grattan, Irish statesman; and Arthur Young, political economist, died.

POPULATION.—Washington, D.C., 13,247; New York, 123,706; London (Metropolitan District), 1,225,694; United States, 9,638,453; Great Britain and Ireland (1821), 22,566,755.