In 1950, five years after the founding of the United Nations, world population was estimated at around 2.6 billion people. It reached 5 billion in 1987 and 6 in 1999. In October 2011, the global population was estimated to be 7 billion.| United Nations
How does the number of children vary across the world and over time? What is driving the rapid global change?| Our World in Data
We are able to say that communist central planning failed because we can compare its results with those of capitalism.| brinklindsey.substack.com