Editing Industrial Revolution (section)

===Population increase===
The Industrial Revolution was the first time there was a simultaneous increase in population and per person income.<ref>{{cite book|title=The Industrial Revolution|last=Hudson|first= Pat|year=1992 |publisher =Routledge, Chapman, and Hall, Inc.
|location= New York|isbn= 978-0-7131-6531-9|page=3}}</ref> The [[Demographics of England|population of England]] and Wales, which had remained steady at six million in 1700–40, rose dramatically afterwards. England's population doubled from 8.3&nbsp;million in 1801 to 17&nbsp;million in 1850 and, by 1901, had doubled again to 31&nbsp;million.<ref name="statistics" /> Improved conditions led to the population of Britain increasing from 10&nbsp;million to 30&nbsp;million in the 19th century.<ref name="independent" /><ref name="bbc" /> Europe's population increased from 100&nbsp;million in 1700 to 400&nbsp;million by 1900.<ref name="britannica" />

Between 1815 and 1939, 20% of Europe's population left home, pushed by poverty, a rapidly growing population, and the displacement of peasant farming and artisan manufacturing. They were pulled abroad by the enormous demand for labour, ready availability of land, and cheap transportation. Many did not find a satisfactory life, leading 7&nbsp;million to return to Europe.<ref>{{Cite book|title=Cultures in Contact|last=Hoeder|first=Dirk|publisher=Duke University Press|year=2002|location=Durham, NC|pages=331–332}}</ref> This mass migration had large demographic effects: in 1800, less than 1% of the world population consisted of overseas Europeans and their descendants; by 1930, they represented 11%.<ref>{{Cite book|title=America in the World|last=Guarneri|first=Carl|publisher=McGraw-Hill|year=2007|location=Boston|page=180}}</ref> The Americas felt the brunt of this huge emigration, largely concentrated in the US.