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bessemer's process
Sir Henry Bessemer invented the first process for mass-producing steel inexpensively, essential to the development of skyscrapers. An American, William Kelly, had held a patent for "a system of air blowing the carbon out of pig iron" a method of steel production known as the pneumatic process of steelmaking. Air is blown through molten pig iron to oxidize and remove unwanted impurities.
http://inventors.about.com/library/inventors/blsteel.htm -
pres. abraham lincolns assassination
Good Friday, April 14th 1865 at 10pm President Abraham Lincoln was attending “Our American Cousin” at Ford’s theatre, with his wife and two guests, but no bodyguard. Lincoln was shot in the back of the head at point blank range by John Wilkes Booth. Lincoln died the next day, after never waking from the coma. -
transcontinental railroad
The First Transcontinental Railroad in the United States was built in the 1860s, linking the well developed railway network of the Eastern coast with rapidly growing California. When the main line was officially completed on May 10, 1869, it forever changed the American West and set the USA on the path to economic abundance. -
telephone/ alexander graham bell
Throughout his life, Bell had been interested in the education of deaf people. This interest leads him to invent the microphone and, in 1876, his "electrical speech machine," which we now call a telephone. News of his invention quickly spread throughout the country, even throughout Europe. By 1878, Bell had set up the first telephone exchange in New Haven, Connecticut.
http://sln.fi.edu/franklin/inventor/bell.html -
theodore roosevelts forest service
in 1905, the United States Forest Service officially came into existence under the Department of Agriculture. Gifford Pinchot, head of the forestry division of the DoA, had been advocating for more control over the federal forests and grasslands and was supported heartily by Theodore Roosevelt. With the establishment of the Forest Service, Pinchot finally had the control needed to start implementing many of the forestry policies for which he advocated including scientific management of forests, -
world war 1
The assassination on 28 June 1914 of Archduke Franz Ferdinand of Austria, the heir to the throne of Austria-Hungary, was the proximate trigger of the war. Long-term causes, such as imperialistic foreign policies of the great powers of Europe, such as the German Empire, the Austro-Hungarian Empire, the Ottoman Empire, the Russian Empire, the British Empire, France, and Italy, played a major role. Ferdinand's assassination by a Yugoslav nationalist resulted in a Habsburg ultimatum against the King -
panama canal
The Panama Canal (Spanish: Canal de Panamá) is a 77-kilometre (48 mi) ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, annual traffic has risen from about 1,000 ships in the canal's early days to 14,702 vessels in 2008, measuring a total 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons. In total over 815,000 vessels have passed through the canal.[1] It has been named one o
