The history of nanotechnology and its foundations have emerged over many decades of research in many different fields. Computer circuits have been getting smaller. Chemicals have been getting more complex. Biochemists have learned more about how to study and control the molecular basis of organisms. Mechanical engineering has been getting more precise.
In 1959, the great physicist Richard Feynman suggested that it should be possible to build machines small enough to manufacture objects with atomic precision. His talk, "There's Plenty of Room at the Bottom," is widely considered to be the foreshadowing of nanotechnology. Among other things, he predicted that information could be stored with amazing density.
In the late 1970's, Eric Drexler began to invent what would become molecular manufacturing. He quickly realized that molecular machines could control the chemical manufacture of complex products, including additional manufacturing systems-which would be a very powerful technology. Drexler published scientific papers beginning in 1981. In 1986 he introduced the term "nanotechnology" in his book Engines of Creation to describe this approach to manufacturing and some of its consequences. (Subsequent search showed that Taniguchi had previously used the word in Japan to describe precision micromachining.) In 1992 Drexler published Nanosystems, a technical work outlining a way to manufacture extremely high-performance machines out of molecular carbon lattice ("diamondoid"). Meanwhile, he was also engaging in policy activism to raise awareness of the implications of the technology; he founded the Foresight Institute in 1986.
Engines of Creation created much excitement. The term "nanotechnology" rapidly became popular, and almost immediately its meaning began to shift. By 1992, Drexler was using "molecular nanotechnology" or "molecular manufacturing" to distinguish his manufacturing ideas from the simpler product-focused research that was borrowing the word. This research, producing shorter-term results, came to define the field for many observers, and has continued to claim the term "nanotechnology."