'The Most Important Biblical Discovery of Our Time': William Henry Green and the Demise of Ussher's Chronology

In 1650 the distinguished church historian Archbishop James Ussher of Ireland announced his meticulously calculated time of the Creation: early Saturday evening, 22 October 4004 B.C.E., a date immortalized in the margins of countless Bibles for nearly three centuries. Among evangelical Protestants who believed in the inerrancy of Scripture this date came to mark the beginning of human history. For some believers it remained a landmark until the late twentieth century; others abandoned it as early as the 1860s. Among American evangelicals no one played a more important role in discrediting Ussher's chronology than William Henry Green, an Old Testament scholar at Princeton Theological Seminary. One of Green's Princeton colleagues called his demonstration of Ussher's fallacy “the most important biblical discovery of our time.” In some ways it was, although its full impact did not come until the second half of the twentieth century.