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The United States expropriated from Panama additional areas around the soon-to-be-built Madden Dam and annexed them to the Panama Canal Zone. [365] [373] 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 ...
United States territorial expansion since 1803, maps by William R. Shepherd (1923) Census Bureau map depicting territorial acquisitions and effective dates of statehood The following is a list of the 31 U.S. territories that have become states, in the order of the date organized .
The cartography of the United States is the history of surveying and creation of maps of the United States. Maps of the New World had been produced since the 16th century. 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 ...
Original territory of the Thirteen States (western lands, roughly between the Mississippi River and Appalachian Mountains, were claimed but not administered by the states and were all ceded to the federal government or new states by 1802) 1783: 892,135: 2,310,619----- Annexation of the Vermont Republic: 1791: 9,616: 24,905----- Louisiana ...
In 1845, Texas joined the United States and in 1867 the United States acquired Alaska from Russia. The last major territorial change occurred when Newfoundland joined Canada in 1949, [ 2 ] but there have been a number of small adjustments like the Boundary Treaty of 1970 where the city of Rio Rico, Texas , was ceded to Mexico.
In the 1800 United States census, following the passage of an organic act by the 6th U.S. Congress creating the Indiana Territory in 1800, seven counties in the Northwest Territory reported the following population counts: [16] [17] [18] [19]
The main powers in North America frequently fought over territory. One of the biggest wars was the French and Indian War that ended in France leaving the continent and giving up its claims in the Treaty of Paris. After 1763 a new power emerged, the independent United States of America.
The territory shown in the seven Qin maps overlap each other. [38]: 92 The maps display tributary river systems of the Jialing River in Sichuan, in a total measured area of 107 by 68 km. [38]: 92 The maps featured rectangular symbols encasing character names for the locations of administrative counties.