Polish pediatrician , sexologist and educator, humanist, specialist in school medicine, professor of medicine and pedagogy , and scout instructor. Author of the fission theory of maturity and the theory of the developmental bend. Scoutmaster , during the war he was active in the Gray Ranks as the Zawiszaków team in Milanówek (aka "Sowa"). After the war, in 1948–1950, the commander of the troop Polish Scouting Association Warszawa Żoliborz. He die 13 October 2020 in Ropki, Poland. Link to Wikipedia biography (Polish) Read less
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