Question

What countries were the most heavily populated countries in the 20th century?

Answer 1

1 China
2 India
3 United States
Hope it helps

Answer 2

When it comes to population, numbers have always tended to be highest in Asia. Currently, Asia holds around 4.4 billion inhabitants, just over 60% of the world's population. Within it, China and India clearly stand out as the countries with the largest populations, totaling more than 2.6 billion people combined.