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Hace 2 días · Dated to the 3rd century AD, it is the earliest known machine to incorporate a crank and connecting rod mechanism. By at least the 3rd century: Crystallized sugar in India. Early 3rd century: Woodblock printing is invented in Han dynasty China at sometime before 220 AD.
Hace 3 días · 1820: Discovery of Antarctica. 1820: Liberia founded by the American Colonization Society for freed American slaves. 1820: Dissolution of the Maratha Empire. 1821–1823: First Mexican Empire, as Mexico's first post-independence government, ruled by Emperor Agustín I of Mexico.
Hace 6 días · In November 1820, Nathaniel Palmer, an American sealer looking for seal breeding grounds, using maps made by the Loper whaling family, sighted what is now known as the Antarctic Peninsula, located between 55 and 80 degrees west.
Hace 1 día · United States Army, major branch of the United States armed forces charged with the preservation of peace and security and the defense of the country. The army furnishes most of the ground forces in the U.S. military organization. Origins in the American Revolution and early republic. Washington, George.
Hace 5 días · Starting in 1820, some federal records, including ship passenger lists, were kept for immigration purposes, and a gradual increase in immigration was recorded. More complete immigration records provide data on immigration after 1830.
Hace 2 días · 1846 – The United States and Great Britain sign the Oregon Treaty. 1847 – Abraham Lincoln introduces himself to the world by his introduction of the Spot Resolutions in the House. 1847 – Battle of Buena Vista. 1847 – Battle of Veracruz. 1848 – The Treaty of Guadalupe Hidalgo ends the Mexican–American War.
Hace 4 días · White domination of Blacks characterized Southern politics and economics from the 17th century and began to yield only after World War II. Cotton Pressing in Louisiana, wood engraving from Ballou's Pictorial Drawing-Room Companion, 1856. (more)
