"We've been dealing with pandemics from the earliest recorded history. Thucydides writes about a pandemic in the history of the Peloponnesian War. So the last thing 2020 was, was unprecedented," Stanford historian Niall Ferguson told Ian Bremmer on GZERO World. Ferguson, whose new book, "Doom: The Politics of Catastrophe," believes that the world should have been better prepared for the COVID-19 pandemic based on the numerous health crises of the 20th century, from the 1918 Spanish flu to influenza and HIV/AIDS. He provides perspective on how the COVID crisis stacks up compared to other pandemics throughout history.

Watch the episode: Predictable disaster and the surprising history of shocks