How long has nanotechnology been around?

Answer 1

Most people would say it has been around since the 1959 talk by Richard Feynman titled "there's plenty of room at the bottom".

Answer 2

Nanotechnology as a concept has been around since the 1950s, when physicist Richard Feynman first discussed the possibility of manipulating materials at the atomic and molecular scale. However, it began to gain significant attention and develop as a field of study in the 1980s and 1990s.