How long ago did the dinosaurs go extinct? I'm doing a report on how many years ago the dinosaurs went extinct. I'm in the 10th grade.

I'm an amateur Historian trying to specialize in Middle Eastern History, Persian art, Ottoman History and eventually will try to get an MA in Middle Eastern History and/or Museum Studies. I love Marvel comics, cool movies, rock music, 70s rock, and I like to discuss religion, history, art, and philosophy.