9th October 1936 The Boulder Dam (later called Hoover Dam), on the Arizona-Nevada border, began generating electricity.
Hoover Dam, article from Wikipedia    https://en.wikipedia.org/wiki/Hoover_Dam

HOOVER DAM  - Sugar · Bob Mould       https://www.youtube.com/watch?v=IomW6HqxbtM
HOOVER DAM  - Rhett & Link       https://www.youtube.com/watch?v=0IwPairH Obk