The Louisiana Purchase / Edison's Light Bulb Patent

The Louisiana Purchase, also, Edison's Light Bulb Patent. . , The Louisiana Purchase , Under the direction of President Thomas Jefferson, the Louisiana Purchase of 1803 , the largest single land deal in the history of the United States , doubled the size of the young nation. Napolean Bonaparte of France, whose dream for an empire in America had been dashed, sold the territory of 600 million acres for $15 million, or approximately 4¢ per acre., The acquisition, acquired as a result of the successful negotiating efforts of Robert R. Livingston, the United States Minister at Paris, and special envoy James Monroe, eventually became the following states or parts of states: Louisiana, Arkansas, Missouri, Iowa, North Dakota, South Dakota, Nebraska, Kansas, Wyoming, Minnesota, Oklahoma, Colorado, and Montana., The original treaty is in the National Archives of the United States., Edison's Light Bulb Patent , Over the years, Thomas Alva Edison (1847-1931), Ohio native and inventor, applied for and received patents from the United States government for more than a thousand of his ideas., Edison received his first patent in 1869 for a vote recording machine. Eleven years later, on January 27, 1880, his light bulb patent "for an improvement in electric lamps," which would fundamentally impact the lives of people throughout the world, was awarded., Among his other inventions are the phonograph, the microphone, the mimeograph, the electric pen, the wireless telegraph, and the alkaline storage battery., The original patent is in the National Archives of the United States. . This historical marker is in Hyattsville in Prince George's County Maryland