Also worth noting is that it is really hard to rank tragedies, so we didn’t. These are in no particular order. They are just all bad and that is why they made the list. These are the 25 Horrible Events Taken Place Throughout History. https://www.youtube.com/watch?v=omubp3rL6LM Featured Image: pixabay Note: Some smaller dinosaurs survived, today they are known as Aves, or birds. Note: this position is controversial. There was a population bottleneck (evident from genetic testing) but whether or not the Toba eruption was responsible is up in the air.