While working at the Premier Milling Company in the early 1930s, Sisulu attended night school at the Social Centre in 1933. When he was fired from Premier for organising a strike for higher wages in 1936, Sisulu worked as a distribution agent for The Bantu World, then under leadership of Social Centre alumnus Selope Thema.
During his tenure at the Premier Milling Company in the early 1930s, Sisulu continued his education through night classes at the Social Centre in 1933. Following his dismissal from Premier for organizing a strike demanding higher wages in 1936, Sisulu took on a role as an agent distributing The Bantu World under the leadership of Selope Thema, a former student of the Social Centre.