text: * 1971 – M.L. Lieberman reports growth of three different graphitic like filaments; tubular, twisted, and balloon like. TEM images and diffraction data shows that the hollow tubes are multi-walled carbon nanotubes (MWCNT).
  * 1976 – A. Oberlin, Morinobu Endo, and T. Koyama reported CVD (Chemical Vapor Deposition) growth of nanometer-scale carbon fibers, and they also reported the discovery of carbon nanofibers, including that some were shaped as hollow tubes.
  * 1979 – Arthur C. Clarkes science fiction novel The Fountains of Paradise popularizes the idea of a space elevator using "a continuous pseudo-one dimensional diamond crystal'".