World population

In 1801, when the first complete world census was carried out, the world’s population was 1 billion. China had 295 million people, India 131 million, Russia 33 million, France 27 million, Ottoman Empire 21 million, Germany 14 million, Spain 11 million, Britain 10 million, Ireland and the USA 5 million.
World population landmarks:
2 billion people : 1927
3 billion people : 1960
4 billion people : 1974
5 billion people : 1987
6 billion people : 1999
6.9 billion people : 2010
7 billion people : 2011
As in July 2010, China has a population of 1.3 billion; India 1.2 billion, USA 307 million. Britain has a population of 61 million, Russia 141 million, France 62 million, Germany 82 million.