Career
He also was a journalist and involved in the activities of the Communist International. Amsterdam was executed in the Great Purge in Moscow in 1937.
He also was a journalist and involved in the activities of the Communist International. Amsterdam was executed in the Great Purge in Moscow in 1937.
Initially a member in the Poale Zion 1918–1921, he was a member of the Central Committee of the Communist Party of Poland (KPP) after 1923. Between 1933-1934 he was a member of the Political Bureau of the Central Committee of the KPP.