Forget about 9/11 and Y2K...
It just occurred to me that there are high school and college kids who are probably too young to even remember the Haiti earthquake(2010), The Tohoku earthquake/tsunami(2011), or the 2012 Mayan calendar scare. Everyone always talks about the significant events from the 90s and early2000s, with the exception of the recession, but that was 24+ years ago. You would have to be at least close to 30+ to legitimately remember those things, but the things I mentioned only happened just last decade, which is about 13-15 years ago. It really doesn't seem all that long ago, but there are currently young adults who were only toddlers or very young children when these things occurred, and that's crazy to me.
It's mostly just a random thought I had, but I also hope this will inspire people to talk about something other than the same 3 events(9/11, Y2K, 2008 recession).