General Prologue of the Wycliffe Bible and finished before January or February 1397. The "General Prologue" and the later version of the New Testament portion of the Wycliffe Bible, done after 1395, are attributed to Purvey as the main translator and editor/writer. The earlier version of the Wycliffe Bible, done around 1382, is attributed to John Wycliffe as the main translator and editor/writer. There are 250 Wycliffe Bibles that survive today in various degrees of completeness. It is estimated that about twenty-one contain or might have had the complete Wycliffe Bible (also known as the English Wycliffite Bible or the Lollard Bible). There are 89 Wycliffe
19th century in science the length scale required for gravitational perturbations to grow in a static nearly homogeneous medium. In chemistry, Dmitri Mendeleev, following the atomic theory of John Dalton, created the first periodic table of elements. In 1859, Charles Darwin published the book "The Origin of Species", which introduced the idea of evolution by natural selection. The list of important 19th-century scientists includes: 19th century in science The 19th century in science saw the birth of science as a profession; the term scientist was coined in 1833 by William Whewell, which soon replaced the older term of (natural) philosopher. Among the most influential