Top 10 most populous countries and regions in 1960

Historical reporting boundaries

World Bank country-series labels do not reconstruct every political entity that existed in a historical year. Russia and Bangladesh appearing in this 1960 list should therefore be read as reporting units for a historical data series, not as a claim about the sovereign-country map of 1960. A question explicitly about then-existing political states would require a different boundary treatment. This is the most important scope distinction in the puzzle, because identical population numbers can imply different things under different geographic definitions.

Why aggregate rows are excluded

The API includes regional, income-group and other aggregate series alongside individual economies. Leaving those groups in the candidate pool would place totals such as a whole region beside its constituent countries, counting the same residents at different geographic levels. The archive excludes aggregate economies and rows without reported values before sorting. Missing is not the same as zero: a blank observation cannot be treated as evidence that a place had no population in that year.

What the historical gap reveals

China’s saved value is about 667 million and India’s about 436 million. Comparing their 1960 figures makes clear why a modern ranking cannot be projected backward unchanged. The lower positions also include Germany, Brazil, the United Kingdom and Bangladesh under the source’s reporting labels. The chart measures population size, not growth rates, and cannot explain causes from a single year alone. Historical estimates can be revised, so the source-review date is separate from both the observation year and puzzle date. The frozen values make the archive checkable without silently changing a past game after a revision.

Sources & further reading

• World Bank: 1960 population series
• World Bank: population indicator definition

Explanation updated Thursday, October 1, 2026. The puzzle’s original data date is listed below.