coronavirus, where does this stack in the legacy of nasty viruses that come out every few years? I can remember several off hand making the news, maybe I'm lump

coronavirus, where does this stack in the legacy of nasty viruses that come out every few years? I can remember several off hand making the news, maybe I'm lumping some mistakenly. Anyone know a place where a timeline and scale of each pandemic (is that what they're known as?) can be found? * swine flu * SARS * bird flu * H1N1