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The highway bridge was reopened the following day. [citation needed] On June 17, 2008, the bridge was closed due to flooding. [1] Every year on the second Saturday of May the Great River Bridge Race is run. The 6-mile (9.7 km) race starts at the Iowa on ramp and runs the first mile in Iowa including running up Snake Alley.
The new planet, at first called "Le Verrier" by François Arago, received by consensus the neutral name of Neptune. Its mathematical prediction was a great intellectual feat, but it showed also that Newton's law of gravitation, which Airy had almost called in question, prevailed even at the limits of the Solar System. [20]
Urbain Le Verrier. Urbain Jean Joseph Le Verrier (French: [yʁbɛ̃ ʒɑ̃ ʒozɛf lə vɛʁje]; 11 March 1811 – 23 September 1877) was a French astronomer and mathematician who specialized in celestial mechanics and is best known for predicting the existence and position of Neptune using only mathematics. The calculations were made to ...
Christopher Columbus [b] (/ k ə ˈ l ʌ m b ə s /; [2] between 25 August and 31 October 1451 – 20 May 1506) was an Italian [3] [c] explorer and navigator from the Republic of Genoa [3] [4] who completed four Spanish-based voyages across the Atlantic Ocean sponsored by the Catholic Monarchs, opening the way for the widespread European exploration and colonization of the Americas.
European discovery and colonization of the Americas. Between 1492 and 1504, the Italian navigator and explorer Christopher Columbus [a] led four transatlantic maritime expeditions in the name of the Catholic Monarchs of Spain to the Caribbean and to Central and South America. These voyages led to the widespread knowledge of the New World.
Columbus's letter (particularly the Latin edition) forged the initial public perception of the newly discovered lands. Indeed, until the discovery of Columbus's on-board journal, first published in the 19th century, this letter was the only known direct testimony by Columbus of his experiences on the first voyage of 1492. [7]
Mississippi River, and the Gulf of Mexico. Signature. René-Robert Cavelier, Sieur de La Salle (/ ləˈsæl /; November 22, 1643 – March 19, 1687), was a 17th-century French explorer and fur trader in North America. He explored the Great Lakes region of the United States and Canada, and the Mississippi River. He is best known for an early ...
During the Age of Discovery, Spain sponsored and financed the transatlantic voyages of the Italian navigator Christopher Columbus, which from 1492 to 1504 marked the start of colonization in the Americas, and the expedition of the Portuguese explorer Ferdinand Magellan to open a route from the Atlantic Ocean to the Pacific, which later achieved ...