Fifteen years to the day since the death of racing legend Ayrton Senna at the 1994 San Marino Grand Prix.
I can still remember where I was and what I was doing at the time - despite being only 9 years old. And I remember watching racing at the time thinking "this guy is a crazy genius." I doubt there'd be many that would argue with that.
His death - alongside that of Austrian Roland Ratzenberger in qualifying the previous day - brought about a number of changes in driver safety in the sport.
The BBC have a documentary about his life in Formula 1 - which, judging by some of the haircuts, is a few years old. Well worth a wee look though, and you can see it here.