Search results
Results From The WOW.Com Content Network
May 14 – In Philadelphia, Pennsylvania, delegates begin arriving to write a new Constitution for the United States.; May 25 – In Philadelphia, Pennsylvania, delegates begin to convene a Constitutional Convention intended to amend the Articles of Confederation.
no change to map: December 12, 1787 Pennsylvania became the second state to ratify the Constitution. [66] December 18, 1787 New Jersey became the third state to ratify the Constitution. [67] January 2, 1788 Georgia became the fourth state to ratify the Constitution. [68] January 9, 1788 Connecticut became the fifth state to ratify the ...
Map of territorial growth, 1775 Northwest territory Monument referencing the beginning point of the PLSS. Originally proposed by Thomas Jefferson to create a nation of "yeoman farmers", [1] the PLSS began shortly after the American Revolutionary War, when the federal government became responsible for large areas of land west of the original thirteen 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 American Revolutionary War (1776–1783). Later, Samuel Augustus Mitchell published a map of the United States ...
Map of the “Inhabited Quarter” by Sadiq Isfahani from Jaunpur c.1647. This was one of the only surviving Indian made maps. In 1402, Yi Hoe and Kwan Yun created a world map largely based from Chinese cartographers called the Gangnido map. It is currently one of the oldest surviving world maps from East Asia. [64]
The Mitchell Map. The Mitchell Map is a map made by John Mitchell (1711–1768), which was reprinted several times during the second half of the 18th century. The map, formally titled A map of the British and French dominions in North America &c., was used as a primary map source during the Treaty of Paris for defining the boundaries of the newly independent United States.
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 February 2025. "American history" redirects here. For the history of the continents, see History of the Americas. Further information: Economic history of the United States Current territories of the United States after the Trust Territory of the Pacific Islands was given independence in 1994 This ...
The first man-made diffraction grating was invented around 1785 in Philadelphia by David Rittenhouse who strung 50 hairs between two finely threaded screws with an approximate spacing of about 100 lines per inch. [28] 1787 Automatic flour mill. Classical mill designs were generally powered by water or air.