We qualify these dates with words like “about” because of small unknowns. For example, we don’t know whether or not the Genesis 11 begetting years include time in the womb.5 

But uncertainties keep shrinking. Confidence grows in the Bible’s time stamps. Serious scholars are now closer than ever to using just the Bible to pinpoint ages of ancient events like the Flood.6


When Did Noah’s Flood Happen? from Institute for Creation Research on Vimeo.



  1. Young, R. C. 2008. Evidence for Inerrancy from an Unexpected Source: OT ChronologyBible and Spade. 21 (2): 54-64.
  2. Young, R. C. 2004. When Did Jerusalem Fall? Journal of the Evangelical Theological Society. 47 (1): 21-38.
  3. Steinmann, A. E. 2011. From Abraham to Paul: A Biblical Chronology. St. Louis, MO: Concordia Publishing House.
  4. One of these time tangles involves Abraham. Some conservative scholars add 60 years to Terah’s age when Abraham and his brothers were born. See Thomas, B. 2017. Two date range options for Noah’s Flood. Journal of Creation. 31 (1): 120-127. However, Thomas Ice and James Johnson showed a coherent chronology without these 60 years. See Ice, T. D. and J. J. S. Johnson. 2002. Using Scriptural Data to Calculate a Range-Qualified Chronology from Adam to Abraham. Presented at the Southwest Regional Meeting of the Evangelical Theological Society at The Criswell College in Dallas, Texas, on March 1, 2002, available on ICR.org.
  5. Adding gestation months plus birthday months for each generation adds no more than 16 years to the ~2472 B.C. date of the Flood. See Johnson, J. J. S. 2008. How Young Is the Earth? Applying Simple Math to Data in Genesis. Acts & Facts. 37 (10): 4.
  6. The Flood at ~2472 B.C. + 2018 A.D. = ~4,500 years ago.

* Brian Thomas is Science Writer at the Institute for Creation Research and earned his M.S. in biotechnology from Stephen F. Austin State University.