sentences:  From 1921-1924, he was in the national leadership of the Communist "Kindergruppe".In 1924, he was let go from his job and became a leading functionary of the Rotfrontkämpferbund from 1925-1928, as well as the district representative from Neukölln and a city delegate from Berlin from 1925-1933.Lange was the editor in the agitation and propaganda department of the Central Committee of the KPD from 1927-1933 and from 1930-1932, he was in the national leadership of the "Kampfbund gegen den Faschismus", an antifascist organization of the KPD devoted to the fight against fascism.