The definitive Wikipedia entry for Mikhail Botvinnik. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mikhail_Botvinnik
Progress was fairly rapid and by the age of 20, Botvinnik, already a Soviet Master of some years standing, won his first Soviet Championship in 1931. This feat was to be repeated in 1933, 1939, 1941, 1945 and 1952. ... Not surprisingly, Botvinnik cont www.centipedia.com/articles/Mikhail_Botvinnik
In the USSR those years sport was considered as an original appendix to a trade and the student, and then a young scientist with maximum and serious education (Botvinnik has finished one of the most solid High Schools of the country - the Leningrad Polyte www.ruschess.com/Grands/Botvinnik/main.html
Progress was fairly rapid and by the age of 20, Botvinnik, already a Soviet Master of some years standing, won his first Soviet Championship in 1931. This feat was to be repeated in 1933, 1939, 1941, 1945 and 1952. ... Not surprisingly, Botvinnik cont fact-archive.com/encyclopedia/Mikhail_Botvinnik