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50 Most Populated Countries in the World

The global population has been increasing ever since humanity invented agriculture around 10,000 B.C. The domestication of food and animals meant that humans had a stable food supply, and could…

The World's 20 Largest Cities by Population

The biggest cities to ever exist For the first time in human history, a majority of people live in urban environments. The world's largest cities today fall under a class that researchers call "…

Births, Birth Rates, and Fertility Rates 2009

The following table shows the number of births, birth rates, and fertility rates in the United States excluding Puerto Rico, Virgin Islands, Guam, American Samoa, and Northern Marianas during 2009…