There was increased competition for food.
India's population hasn't decreased since 1920.
There's a Reason - 1920 was released on: USA: 27 November 1920
The German population in 1920 was roughly 65 million.
High Tariffs
respect for laws decreased -Dave
From 1860 to 1920, the population of New York City was overwhelming large. From 813,000 in 1860, the city had a population in 1920 of 7.9 million.
The population of Alaska in 1920 was approximately 55,036 people.
1890-1920 the population went from 260,000 to 2,025,000. 1920-1950 the population went from 2,025,000 to 2,225,000. 1950-1980 the population went from 2,225,000 to 3,025,000. 1980-present the population went from 3,025,000 to 3,750,000.
The founding of national radio networks like NBC
2,3562,907
About 30 million.
About 10.5 million.