 Jefferson wrote prodigiously. He penned some 19,000 letters. He published Notes on the State of Virginia (English version) in 1787. He wrote key declarations such as Summary View of the Rights of British Americans (1774), Declaration of the Causes and Necessity of Taking Up Arms (1775), and the Declaration of Independence (1776); authored numerous bills; and wrote his Manual of Parliamentary Practice for the Use of the Senate of the United States, a modified copy of which was still in use till 1977. He put together two harmonies, The Philosophy of Jesus (1804)—no copies are known to survive—and The Life and Morals of Jesus of Nazareth (1820), by extracting passages from the New Testament. Last, Jefferson undertook late in life an autobiography (never completed), “for my own ready reference &amp; for the information of my family” ([Au]: 3).