Human population

Human population

In the year 8,000 B.C., there were only 5 million people on Earth. 4,000 years later, the population had only risen by 2 million people, to 7 million people. Nowadays, Earth's population rises by 2 million roughly every 9 days. 

Previous Fact Next Fact
Categories: HistoryPeople

Latest FactRepublic Video

32 Incredible Easter Eggs You Missed in Harry Potter Movies