This 3 min video will give an overview of the most populous cities from the 1500 to now. See how the US has only briefly been in the top 10 starting from 1849, or at the video’s 1 minute 49 sec, while for China disappearing from this top 10 list during the 19th -20th centuries has only been the exception. More than ever we need to understand something about China. Population density is a key factor in the spread of contagious diseases. How China handles the spread of the coronavirus is closely connected to its highly populated cities. How do you understand population density and its impact on the culture of its people? Contact Yvonne to learn more.