Kasparov TMER: Early Events

I finished the task started in my previous post, Garik Weinstein, identifying the early events in Kasparov's book Kasparov on Garry Kasparov, Part I: 1973-1985. The full list is shown below.

Next step: Merge this info with the index for Garry Kasparov's Tournament, Match, and Exhibition Record (1973-).