plague The Past Harvard professor’s study identifies the worst year in human history A Harvard professor’s study discovers the worst year to be alive. Health What ended the Black Death, history’s worst pandemic The bubonic plague ravaged the world for centuries, killing up to 200 million people.
The Past Harvard professor’s study identifies the worst year in human history A Harvard professor’s study discovers the worst year to be alive.
Health What ended the Black Death, history’s worst pandemic The bubonic plague ravaged the world for centuries, killing up to 200 million people.
