11th july,1987, approximately the date on which the world's population reached five billion people.The event was established by the Governing Council of the United Nations Development Programme in 1989
About 1 Billion... about 1/6 of the worlds population.
22 April
14 november
10 november
Earth Day is held on the 20th of April
I Can't find a population day, but there is a National Day, it's celebrated on December 28th
In the United States, Doctor's Day is celebrated on March 30th. In India, it is celebrated on July 1st.
never
11 july
World Population Day is celebrated every year on the 11th July. The event seeks to raise awareness of Global Population issues we face.
50,000,000 in a day
The population of Cyan Worlds is 2,005.