As of July 2015, the U.S. Department of State recognizes a total of 195 independent states worldwide, although many other countries consider Taiwan the 196th country. The U.S. government stopped recognizing Taiwan as a nation independent of China in 1979.
As of October 2014, there were nearly 2 billion personal computers used worldwide. By comparison, the 1 billionth personal computer was shipped in 2002, although 1 billion computers were in use in 2008. Several research groups believe the 2-billion mark of PC usage will...
It is important to define the word "city" before beginning to answer how many there are. The United Nations has contradictory definitions in its reports. A report compiled from World Atlas calculated that there were 4,416 cities in the world with a population of over 15...
The population of the world is 7.2 billion, and about 70 percent of people in the world are working. This gives a staggering figure of about 5 billion jobs in the world. This number is expected to rise as younger people enter the labor market.
There are nearly an infinite number of colors, according to the Chester F. Carlson Center for Imaging Science at the Rochester Institute of Technology. However, not all of them are distinguishable by the human eye.
There are 10 to 15 million doctors in the world. The World Health Organizations estimates there is a shortage of 4.3 million physicians, nurses and other health workers in the world.
Although it is hard to obtain reliable figures for some countries, in 2012 the total number of dogs in the world was at least 525 million. The United States alone had over 73 million.