So, on Broadway, in lower Manhattan, there are markers on the sidewalk commemorating every ticker-tape parade that happened from, well... I don't know when they started, but Amelia Earhart got more than one.
As you walk up Broadway, the earliest honorees had achievements in exploration or aviation. Then, later, there were parades to honor war heroes. After that, visiting heads of state from developing countries got parades. Nowadays, however, it's pretty much only sports teams.
So, I've lived in New York for nearly 15 years, at this point, and I know that I've walked up this stretch of Broadway, before, but I'd never noticed these markers. That's one of the magical things about living in New York City. Every once in a while, you'll discover something special like this and it reminds you how lucky you are to live in the greatest city in the world.