Mark D. Bowles

Click on the video above to watch Dr. Bowles climb the Temple of Kukulkan at Chichén Itzá


Raindrop shadows through my window / Clouds come and they go / Rain falls and drops descend / Impermanence again...


Join me as we journey into the mists of the past together.

Mark D. Bowles is Professor of History at American Public University System, founder of, and author of 14 books on the history of science and technology. Read his award winning books Science in Flux and the Apollo of Aeronautics. These won the book of the year awards from the American Institute of Aeronautics and Astronautics in 2005 and 2010.

Dr. Bowles earned his Ph.D. from Case Western Reserve University in 1999. He also has MA in history, an MBA in technology management, and a BA in psychology. He is a former Tomash Fellow at the University of Minnesota.

Read his CV at

He has been married to his wife, Nancy since 1990. They are raising their three daughters—Isabelle (b. 2000), and twins Emma and Sarah (b. 2009)—on the edge of the Cuyahoga Valley National Park in northeast Ohio.