all this article started with the swine flu that started in Mexico, that was to see how worst were other diseases that happened in the years A.D and ended like in 1855 or 1959. The worst of all tthese pandemics was the black death that gaves you black skin and in some cases it could kill you the same day tha you got it. But the weirdst was the Spanish flu that didn't originate in Spain, but it originated in a militar camp in Kansas, E.E.U.U.