This paper uses the ability to recall one’s age correctly as an indicator of numeracy. We show that low levels of nutrition impaired numeracy in industrializing England, 1780-1850. Numeracy declined markedly among those born during the war years, especially where wheat was dear. England’s...

This study is the first to explore long-run trends of numeracy for the 1820-1949 period in 165 countries, and its contribution to growth. Estimates of the long-run numeracy development of most countries in Asia, the Middle East, Africa, America, and Europe are presented, using age-heaping...