I realize that the curmudgeon doesn’t like these top lists, however, I openly state that this list is my subjectively compiled list. And I don’t care about your list. Okay, I do. I encourage you to share your lists too. If you think there are other events, please post them in the comments section.
These are somewhat in order of how they appeared. Also, the links aren’t representative of the full impact of each event, but there you go.