Was anyone else in ny when during 911?

I was in the UK, and I was 6 years old. I remember the day perfectly. We buried a time capsule in the garden of the school around the time which the first plane hit. If you go back to my school now there's an inscription on a sign dated 11/9/01, we also planted a tree, which now has 'RIP' carved into it by one of my cl mates who lost an uncle that day. I doubt I will ever forget.