The creation of these programs was paralleled by the hiring, in the 1970s, of professionally trained historians by schools of architecture: Margaret Crawford (with a PhD from UCLA) at SCI-Arc; Elisabeth Grossman (PhD, Brown University) at Rhode Island School of Design; Christian Otto (PhD, Columbia University) at Cornell University; Richard Chafee (PhD, Courtauld Institute) at Roger Williams University; and Howard Burns (MA Kings College) at Harvard, to name just a few examples. A second generation of scholars then emerged that began to extend these efforts in the direction of what is now called "theory": K. Michael Hays (PhD, MIT) at Harvard, Mark Wigley (PhD, Auckland University) at Princeton (now at Columbia University), and Beatriz Colomina (PhD, School of Architecture, Barcelona) at Princeton; Mark Jarzombek (PhD MIT) at Cornell (now at MIT), Jennifer Bloomer (PhD, Georgia Tech) at Iowa State and Catherine Ingraham (PhD, Johns Hopkins) now at Pratt Institute.