Neil Armstrong passed away on August 25th, 2012. NASA had a nice tribute. Whether you care about space travel or not (I do), I think it’s fair to say that Neil Armstrong inspired millions and millions of extraordinary people to go out into a variety of fields and do something significant. I know for a fact he inspired many children to become scientists that made the human condition significantly less terrible.
So, a hero has passed. We’re all, every single one of us, a little better off for his time on and off this planet.
EDIT: Sorry about that. I misread the date and sadly misinterpreted the tribute. Neil passed a year ago on the 25th and I feel terrible now.