[3] He was convicted in "Anti-Soviet nationalistic activities" and imprisoned in Kustanay General Prison No.7 (today near Kostanay, Kazakhstan).

[3] Krymsky was born in Volodymyr-Volynskyi to a Tatar father with Belarusian descent and an ethnic Polish mother.

After graduation, he worked in the Middle East from 1896 to 1898, and subsequently returned to Moscow, where he became a lecturer at the Lazarev Institute, and, in 1900, a professor.

In particular he wrote, in Russian, histories of Islam (1904–12); of the Arabs, Turkey, Persia and their literatures, Dervish theosophy, and a study of the Semitic languages and peoples.

[5] Krymsky wrote three books of lyrical poetry and some novellas, and translated many Arabic and Persian literary works into Ukrainian, including The Rubáiyát of Omar Khayyam, One Thousand and One Nights, and Hafez's songs.

He also translated the poetry of European writers such as Heinrich Heine, Byron, Sappho, Friedrich Rückert.

Clouston's Popular Tales and Fictions (1896) and also wrote many Orientalist works and articles about Ukrainian ethnographers.

In 1939, he was rehabilitated,[5] but in July 1941 after the German-Soviet war began, the NKVD arrested him as "especially unreliable" on charges of "anti-Soviet nationalistic activities",[2] and imprisoned him in Kostanay General Prison, where he died at the age of 71.