1960 ad造句

• Under proliferation of totalitarian agriculture, the world population began to double, first taking 2000 years; then taking 1600 years; and eventually only taking 200 years between 1700 and 1900 AD; then again between 1900 and 1960 AD; and yet again between 1960 and 1996 AD . Over the last 10, 000 years, this single society has expanded to include 99.8 % of the world s population.