The major shift of population of Americans which occurred after World War 2 was dubbed The Baby Boom by the sociologists because of the phenomenal increase in babies being born after World War 2 and the Korean War. It happened in the time span of 1945 to 1964.
(And I am proud to be one born toward the end of that time span.)
Small pox. The natives had no resistence to diseases the europeans carried to the new world.
The Roaring 20's was a time where most Americans were mystified by the false prosperity everyone had access to because of the introduction of a credit system. Business became a major part of the economy, caused by the industrialization of the country after the first world war.
The Spanish flu outbreak in 1918 killed hundreds of thousands of Americans. It actually killed between three and five percent of the world population. The most deadly pandemic ever.
The Americans refused the president Legue Nation
America's population at the beginning of world war 1 was considered mobilization. After World War One fifth of the world's population was infected.
10%
The religion with the largest population percentage in the world is Christianity.
10-20% (a+)
The first "World Series" occured in 1903 with Boston, the A. L. champions, defeating Pittsburgh of the N. L. 5 games to 3.
Asia has the largest population of all the continents. It is home to more than half of the world's population.
Its population alone makes it a major player in world politics.
Europeans brought diseases to the New World that the native populations had no immunity to. That and outright murder are the major European contributions to the death rate of the Native Americans.
As of 2017, there hasn't been a World War 3.
Because the population increased so they needed to use pesticides, fertilizers, etc. to get food to increase also.
In 1914, Russia had the highest population among the world's powers with 171 million. Behind Russia, the US's population was 98 million.
Chritanity, Muslim, Buddhist, Islam
Its population alone makes it a major player in world politics.