Although advances in science and technology are often portrayed as the work of solitary men—for example, Isaac Newton, Thomas Edison, and Albert Einstein—science has always been a collective enterprise, dependent on many individuals who work behind the scenes. This has become increasingly true as more scientists work on large research projects funded by governments and staffed by hundreds of technicians. Yet despite the collaborative nature of science, for too much of its history the work of women and scientists of color was exploited, deemed rudimentary, and unacknowledged.