As far as I am aware, Schrödinger's cat was formulated on November 29, 1935, [1] which is exactly 80 years before the chosen date.
- ^ Schrödinger, E. (1935-11-01). "Die gegenwärtige Situation in der Quantenmechanik". Naturwissenschaften (in German). 23 (48): 807–812. doi: 10.1007/BF01491891. ISSN 1432-1904.