You should record something about your experiences, whether in pictures, movies, or text. Makes it very easy to relive them in your mind.
I feel that history is just one of possible fictions. The fact that it actually happened (even to me personally) poses little significance to me. Physics on the other hand is something real, very distinct and intrinsically interesting.
Learn to tell stories about it to your kids and grandkids if you must, they way people did for thousands of years before camcorders. But the actual moment is fleeting, so live it, be present in it, don't miss that trying record it.