Complex sentence: In 1918, when he was 19 he went to Crimea to teach in Tatar schools and published the first Tatar journal in Dobruja, "Emel" from 1930 to 1940.
Split into simpler sentences: In 1918, when he was 19 he went to Crimea to teach in the Tatar schools. He published the first specifically Tatar journal in Dobruja, Emel from 1930 to 1940.