Cornelius Van Til (May 3, 1895 – April 17, 1987) was a Dutch-American Reformed theologian, who is credited as being the originator of modern presuppositional apologetics. A graduate of Calvin College, Van Til later received his PhD from Princeton University. After teaching at Princeton, he went on to help found Westminster Theological Seminary where he taught until his retirement. Van Til and his work heavily influenced Reconstructionist theologians like Greg Bahnsen and R.J. Rushdoony. Source: Wikipedia (en)