Consortium for
History of Science, Technology and Medicine

315 Chestnut Street
Philadelphia,PA 19106-2702
info@chstm.org

Babak Ashrafi
Executive Director
ba@chstm.org

Lawrence Kessler
Manager of Academic Programs
lk@chstm.org

Aaron Slater
Office Manager
ams@chstm.org

Joannes Regiomontanus
Joannes Regiomontanus, Epitoma in Almagestum Ptolomei (Venice, 31 Aug. 1496). Image courtesy of The Smithsonian Libraries.