This document provides a historical overview of remote sensing and the International Geoscience and Remote Sensing Symposium (IGARSS) from the 1960s to 2010. It discusses the early development of remote sensing technologies and societies, experimental missions like Nimbus and Seasat in the 1970s, and the growth of IGARSS in the 1980s with the launch of new operational sensors. It describes how remote sensing took on new roles in the 1990s related to policy and global change. Finally, it outlines new directions for 2010 and beyond with increased citizen involvement through smartphones, web tools, and crowdsourcing of data.