Who was born first, Mikhail Kravchuk or Israel Gelfand?
Mikhail Kravchuk Mykhailo Pylypovych Kravchuk, also Krawtchouk (Ukrainian: Миха́йло Пили́пович Кравчу́к ) (September 27, 1892 – March 9, 1942), was a Soviet Ukrainian mathematician who, despite his early death, was the author of around 180 articles on mathematics.
Alan Gelfand Alan "Ollie" Gelfand (born 1963, New York) is the inventor of the ollie, a skateboarding trick.