 He was received into the Catholic Church in February 1991 by Father John Hardon, SJ.Armstrong's conversion story was one of eleven in Patrick Madrid's "Surprised by Truth".Armstrong began his website, "Biblical Evidence for Catholicism," in March 1997 and it was described in a magazine article in 2002 as "well-known among both Catholic and Protestant apologists, garnering an estimated 200,000 or more hits annually...a virtual Catholic Encyclopedia".