For hundreds of years Christians have appealed to the dates formulated by the 17th century bishop, James Ussher. Using biblical genealogies from Genesis 5 and 11, and other supporting Biblical passages, he pieced together a timeline for Biblical events. Many Bibles have this timeline in the margins, indicating the estimated year that the events on that page occurred.
Many people still swear by these dates, especially the one indicated for Genesis Chapter One, 4,004 B.C. Many young-earth creationists claim that the creation week started in this year. Is it a reliable assumption that 4,004 B.C. is the beginning point for the earth? How did Ussher arrive at the 4,004 date?
Ussher and Old-Earth Belief
Ussher took a known point in Biblical history, namely, the fall of Jerusalem in 588 B.C. Counting back from there, with the Bibles genealogies and the known number of years that these people lived, he simply added up the dates to get back to the 4,004 B.C. date for Adams birthday.
If you are an old-earth believer, there is no need to lose any sleep over Ussher and his dates, because his dates have no impact upon the events of the creation week. This is...