James Ussher's calculation was the best-sourced calculation in all of Christendom at the time. Ussher also spoke with authority, and from a position of authority. For those reasons, his dates for various Biblical events appeared in the margins of [[King James Version|King James]] and other Bibles for centuries, until the last quarter of the twentieth century, when publishers abandoned this practice. Sir [[Isaac Newton]] defended Ussher's date.<ref>Cited in Sarfati, Jonathan, [http://www.creationontheweb.com/content/view/141 Comets—portents of doom or indicators of youth?], ''Creation'' 25(3):36–40, June 2003.</ref> | James Ussher's calculation was the best-sourced calculation in all of Christendom at the time. Ussher also spoke with authority, and from a position of authority. For those reasons, his dates for various Biblical events appeared in the margins of [[King James Version|King James]] and other Bibles for centuries, until the last quarter of the twentieth century, when publishers abandoned this practice. Sir [[Isaac Newton]] defended Ussher's date.<ref>Cited in Sarfati, Jonathan, [http://www.creationontheweb.com/content/view/141 Comets—portents of doom or indicators of youth?], ''Creation'' 25(3):36–40, June 2003.</ref> |