A Non-Fiction Blog. Ein Sachblog.
A collection of some bits of information extracted from the scientific and from the non-fiction literature. (Until June 2025 there were also some poems and aphorisms posted on this blog.)
Sachthemen und Sachtexte. (Bis Ende Juni 2025 wurden hier auch regelmäßig Gedichte und Aphorismen zu beliebigen Themen veröffentlicht.)
Montag, 12. August 2013
Ages at Which Men and Women Made Their Most Creative Contribution to Civilization:
Full size: Click on the image
J. D. Matarazzo; 1972
Wechsler's Measurement and Appraisal of Adult Intelligence
(Adapted from H C Lehman, Age and Achievement, 1953)
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