When it comes to firsts, we typically have a vivid memory of that time/place/person.
The first time you drove a vehicle.
The first date.
The first child.
I could go on, but when it comes to firsts, it also extends to sports. Not just your own personal prowess, but also your fandom. The first player you were a huge fan of, for whatever reason.
Being born in 1983, at the point when I could start to pay attention to the Pittsburgh Steelers I was enthralled with a player who got the ball a ton.