How to find your first game ever:
https://www.chess.com/games/archive?gameOwner=other_game&username=BronsteinPawn&gameType=recent&gameTypeall=live&gameTypeall=daily&gameResult=&opponent=&opening=&color=&gameTourTeam=&gameTitle=&timeSort=asc&rated=&startDate%5Bdate%5D=&endDate%5Bdate%5D=&fen=&ratingFrom=&ratingTo=&search=
Replace the red letters with your username and paste the URL in your browser.
Crawling and scraping trough chess.com I found these historical games.
First ever correspondence game:
https://www.chess.com/daily/game/1
First ever live chess game:
https://www.chess.com/live/game/2
You can see chess.com URLs say it all. I also want to know who was the a-hole that aborted the first ever live chess game. When you look for:
https://www.chess.com/live/game/1
It says the game was aborted lol.