This day in history, on April 24th, 1800, The Library of Congress was established in Washington, D.C. It is America’s oldest federal cultural institution and the world’s largest library. Among the 145 million items in its collections are more than 33 million books, 3 million recordings, 12.5 million photographs, 5.3 million maps, 6 million pieces of sheet music, and 63 million manuscripts. About 10,000 new items are added each day.