Yaroslavsky was named a member of the governing Central Committee of the Bolshevik Party in 1919 as a candidate member and was promoted to full membership in 1921 . He served on the Central Committee 's secretariat from 1921 to 1923 . Yaroslavsky would remain a member of the Central Committee through 1939 , surviving the secret police terror of 1937-38
secret police terror
Great Purge
Yemelyan Yaroslavsky