The Second World War earned the United States a place at the grown ups table because they showed the rest of the world they were not to be trifled with. Both with their troops fighting and the fact that they were able to finish making the atomic bomb before an old, well established country like Russia.
According some authors which discuss this theme there were some factors as:
1) At the middle of 1850 the Chinese were still under British rule and the conditions were very difficult.
2) The devastation of southern Chinese by the taiping rebellion. This destroyed the rural economy and killed more than twenty millions people.
3) The gold was discovered in California in 1848. It produced a big immigrations at the final of century 17th.
The answer would be, The role of women in world war 1.
Short explanation : Most of the men were at war and and the woman had to start working/get jobs. Women typically around WW1 were seen as housekeepers, and only house keepers, and society did not believe that they could hold steady jobs.
Answer:
the start of the Industrial Revolution
Explanation:
By the time of the Industrial Revolution, there were more people than ever before. A main reason for this was 18th century agricultural improvements, which all but ended the periodic famines that had kept down European populations. From 1750 to 1850, the population of England alone nearly tripled.