On January 16, 1986 (the seventh day of the twelfth lunar month), scientists discovered that a barium lanthanum copper oxide began to superconduct at 35K.

On January 16, 1986, Bernoz and Mueller, scientists at the U.S. International Commercial Machinery Corporation Laboratory in Zurich, Switzerland, after more than three years of hard work, discovered a type of copper oxide that began to occur at 35K. This was a historic breakthrough and sparked a new culmination in superconducting research. In October 1987, Bernoz and Mueller won the Nobel Prize in Physics.