Question: When was the author of "The Irrational Atheist" born?

Context articles: The Irrational Atheist
Dan Barker
Gregory M. Herek
Dan Ariely
Seth Andrews
Hemant Mehta
Vox Day
Rabih Alameddine
Eric Maisel
Mario Livio

The Irrational Atheist: Dissecting the Unholy Trinity of Dawkins, Harris, and Hitchens is a 2008 non-fiction book by Vox Day.
Daniel Edwin Barker (born June 25, 1949) is an American atheist activist who served as a Christian preacher and musician for 19 years but left Christianity in 1984.
 He and his wife Annie Laurie Gaylor are the current co-presidents of the Freedom From Religion Foundation.
 He has written numerous articles for "Freethought Today", an American freethought newspaper.
 He is the author of several books including "Losing Faith in Faith: From Preacher to Atheist".
Gregory M. Herek, Ph.D. (born 1954 in Omaha, Nebraska) is a researcher, author, and professor of psychology at the University of California at Davis (UCD).
 He has conducted extensive research on prejudice against sexual minorities, and coined the term "sexual prejudice" as a replacement for "homophobia" to describe this phenomenon.
 Herek argued that using the term homophobia incorrectly assumes that negative responses to lesbian, gay, and bisexual people are founded in pathological, irrational fear (a phobia), whereas psychological research indicates they are more accurately regarded as a form of prejudice.
 Herek is an openly and prominent gay psychologist.
Dan Ariely (Hebrew: דן אריאלי‎ ‎ ; born April 29, 1967) is the James B. Duke Professor of Psychology and Behavioral Economics at Duke University and is the founder of The Center for Advanced Hindsight and co-founder of BEworks, Timeful, Genie and Shapa.
 Ariely is also associated with Qapital and Lemonade in the capacity of Chief Behavioral Economist and Chief Behavioral Officer, respectively.
 Ariely's TED talks have been viewed over 10 million times.
 He is the author of "Predictably Irrational","The Upside of Irrationality", and "The Honest Truth about Dishonesty".
 All three books became "New York Times" best sellers.
 He also wrote two semi-books: Irrationally Yours-an illustrated collection of his immensely popular "The Wall Street Journal" advice column, “Ask Ariely” and Payoff, a short TED book.
Seth Andrews (born April 12, 1968) is an author and speaker on the subject of atheism.
 He is the creator and host of "The Thinking Atheist" online community, podcast, and YouTube channel, and the author of the self-published books "Deconverted" and "Sacred Cows".
 Prior to his atheist activism, he was a fundamentalist Christian and had a ten-year career as a Christian radio host.
Hemant Mehta (born 1983) is an author, blogger, and atheist activist who gained fame for "selling his soul" on eBay.
 Mehta is a regular speaker at atheist events and has sat on the boards of charitable organizations such as the Secular Student Alliance and the Foundation Beyond Belief.
 He also runs a blog on Patheos, Friendly Atheist, in which he and his associates publish articles several times a day.
Theodore Robert Beale (born August 21, 1968), professionally known as Vox Day, is an American writer, editor, video game designer, blogger and alt-right activist.
Rabih Alameddine (Arabic: ربيع علم الدين‎ ‎ ) (born 1959) is a Lebanese-American painter and writer.
 He was born in Amman, Jordan to Lebanese Druze parents (Alameddine himself is an atheist).
 He grew up in Kuwait and Lebanon, which he left at age 17 to live first in England and then in California.
 A lover of mathematics, he earned a degree in engineering from the University of California at Los Angeles (UCLA) and a Master of Business in San Francisco.
 He began his career as an engineer, then moved to writing and painting.
 The author of four novels and a collection of short stories, Alameddine was the recipient of a Guggenheim Fellowship in 2002.
 He lives in San Francisco and Beirut.
Eric Maisel (born in 1947) is an American psychotherapist, teacher, coach, author and atheist.
 His most popular books include Fearless Creating (1995), The Van Gogh’s Blues (2002), Coaching the Artist Within (2005), and The Atheist’s Way (2009).
Mario Livio (born 1945 in Bucharest) is an Israeli-American astrophysicist and an author of works that popularize science and mathematics.
 From 1991 till 2015 he was an astrophysicist at the Space Telescope Science Institute, which operates the Hubble Space Telescope.
 He is perhaps best known for his book on the irrational number "phi": "The Golden Ratio: The Story of Phi, the World's Most Astonishing Number" (2002).
 The book won the Peano Prize and the International Pythagoras Prize for popular books on mathematics.