Volcanoes -- Earthquakes -- Tsunamis -- Floods -- Storms -- Other extreme weather and a mysterious poisoning -- Plagues -- Other diseases -- Famine -- War and invasion -- Murder by the state -- Rebellions, riots, and terrorism -- Fires -- Explosions and mass poisonings -- Stampedes, collapses, and mass panics -- Shipwrecks -- Train crashes -- Air crashes -- Other transport disasters.