I hear you, but they are wrong.
The BJs were invented in the spring of 1977. I know. I was there. There was some talk for a few years, but '77 was when they were invented.
I was 12 years old that spring and by the fall when I was turning 13 the BJs were the talk of the town.
Where is our resident BJ expert ... paging @Boyes (or whatever you call yourself now ?????) ... pink courtesy phone ...