Max Weinreich, Russian-American-Jewish linguist and cofounder of YIVO (born 1894)

Max Weinreich was a Russian-American-Jewish linguist, specializing in sociolinguistics and Yiddish, and the father of the linguist Uriel Weinreich, who, a sociolinguistic innovator, edited the Modern Yiddish-English English-Yiddish Dictionary.

YIVO is an organization that preserves, studies, and teaches the cultural history of Jewish life throughout Eastern Europe, Germany, and Russia as well as orthography, lexicography, and other studies related to Yiddish. Established in 1925 in Wilno in the Second Polish Republic as the Yiddish Scientific Institute.

January 29 is the 29th day of the year in the Gregorian calendar; 336 days remain until the end of the year.