There are 195 countries in the world. Here are random facts about each one.
It took 200,000 years for our population to reach 1 billion—and only 200 years to reach 7 billion
Wealthy Americans live in the suburbs; wealthy Europeans live downtown. Why do cities on the two continents have different structures?
The heavy lifters of the global economy in motion
A detailed look at Canada’s “circulatory system”
The data shown in the map comes from a Yale-led study published earlier this month in Scientific Data, which compiled the most comprehensive dataset on historical urban populations to date
The contrast between the dark blue and red regions may surprise you