The DifferentialGeometry package has been developed over the past 20 years by Ian M. Anderson at Utah State University in collaboration with students and colleagues. The first version was developed by Cinnamon Hillyard in 1991 as a MS thesis. The tensor package was initially developed by Charles Miller for his MS thesis. Florin Catrina and Jeffrey Humpherys initiated the LieAlgebras package. Sydney Chamberlin, Jamie Jorgensen, and Charles Torre created functionalities for general relativity.
Integration into the Maple distributed library is performed by I. M. Anderson and E. S. Cheb-Terrab.
Development and applications of DifferentialGeometry are supported in part by National Science Foundation grants OCI-1148331, DMS-071380, DMS-0410373.