Which mathematician, Boris Trakhtenbrot or Mikhail Leonidovich Gromov, was born first?
Boris Trakhtenbrot Boris (Boaz) Avraamovich Trakhtenbrot (Russian: Борис Авраамович Трахтенброт ; 19 February 1921 – 19 September 2016), or Boaz (Boris) Trakhtenbrot (Hebrew: בועז טרכטנברוט‎ ‎ ) was an Israeli and Russian mathematician in mathematical logic, algorithms, theory of computation, and cybernetics. Trakhtenbrot was born in Brichevo, northern Bessarabia. He worked at Akademgorodok, Novosibirsk during the 1960s and 1970s.
Julian Sochocki Julian Karol Sochocki (Russian: Юлиан Карл Васильевич Сохоцкий , Polish: "Julian Karol Sochocki" ; February 2, 1842 in Warsaw, Congress Poland, Russian Empire – December 14, 1927 in Leningrad, Soviet Union) was a Russian-Polish mathematician. His name is sometimes transliterated from Russian in several different ways (e.g. Sokhotski or Sochotski).