context: Vasily Y. Zinger (January 30 / February 11, 1836 - February 16 / March 1 [1] 1907) - Russian mathematician, doctor of pure mathematics, professor emeritus at Imperial Moscow University (1888) [2]; the author of several works on mechanics and geometry, the founder of the geometric school of Moscow University; one of the founders of the Moscow Mathematical Society (1864), later its president (1886-1891). Dean of the Faculty of Physics and Mathematics (1876-1878, 1880-1885), Vice-Rector of Moscow University (1878-1880).
question: In what year did Vasily Zinger die?
answers.text: 1907