The United States had more children born in 1952 than it did today.   Out of a population less than half our size.

US Today

• 3.8 million babies
• 330 million Americans
• 70 million parent-aged Americans

US in 1952

• 3.9 million babies
• 160 million Americans
• 35 million parent-aged Americans

With twice as much input we get reduced output.  1952 was the beginning of the baby boom, but this year isn’t cherry-picked.  Births were over 4 million for a dozen years after that.  The record was 1957 with 4.3 million births.  We fell below the 1952 level in the mid-1960s until the mid-1980s,

Well.  At least we have a moonbase and flying cars.

Figures gathered from populationpyramid.net, the National Center for Health Statistics, and this list of historical data.