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The Adams-Onis Treaty establishes the boundary between the United States and the Kingdom of Spain, February 22, 1821 The southeastern portion of the Territory of Missouri is admitted to the Union as the State of Missouri (the 24th state) on August 10, 1821.
The United States expropriated from Panama additional areas around the soon-to-be-built Madden Dam and annexed them to the Panama Canal Zone. [367] [375] Caribbean Sea: May 3, 1932 The United States adjusted the border at Punta Paitilla in the Canal Zone, returning a small amount of land to Panama. This was the site for a planned new American ...
The history of cartography of the United States begins in the 18th century, after the declared independence of the original Thirteen Colonies on July 4, 1776, during the American Revolutionary War (1776–1783). Later, Samuel Augustus Mitchell published a map of the United States in 1850. The National Program for Topographic Mapping was ...
1832 – 1832 United States presidential election: Andrew Jackson reelected president; Martin Van Buren elected vice president. 1832 – Jackson vetoes the charter renewal of the Second Bank of the United States, bringing to a head the Bank War and ultimately leading to the Panic of 1837. December 28, 1832 – Calhoun resigns as vice president.
The first mass work stoppage in the 195-year history of the United States Post Office Department began with a walkout of letter carriers in Brooklyn and Manhattan, [42] soon involving 210,000 of the nation's 750,000 postal employees. With mail service virtually paralyzed in New York, Detroit, and Philadelphia, President Nixon declared a state ...
Conflict between the United States and the United Kingdom over Central America escalated, culminating in the Bombardment of Greytown. Tensions with Spain also rose due to the Black Warrior Affair and the publication of the Ostend Manifesto. In Japan, the United States ended the country's period of isolation with the Convention of Kanagawa.
Between 1880 and 1900, the urban population of the United States rose from 28% to 40%, and reached 50% by 1920, in part due to 9,000,000 European immigrants. After 1890 the US rural population began to plummet, as farmers were displaced by mechanization and forced to migrate to urban factory jobs.
The economic history of the United States spans the colonial era through the 21st century. The initial settlements depended on agriculture and hunting/trapping, later adding international trade, manufacturing, and finally, services, to the point where agriculture represented less than 2% of GDP .