How did the African National Congress Youth League develop in Johannesburg?

The development of the African National Congress (ANC) Youth League in Johannesburg was deeply rooted in the rapid social and industrial transformations of the 1930s and 1940s. During this period, Johannesburg experienced a massive influx of Black migrants drawn to the city's booming secondary industries.1

The exigencies of World War II further accelerated this urbanization, as the government suspended influx control to meet labor demands. This led to a doubling of Johannesburg’s Black population, resulting in severe overcrowding in townships and the emergence of informal squatter camps. These squalid conditions, while difficult, fostered new forms of political consciousness and activism.1

Amidst this environment of social tension and the rise of militant trade unionism, the ANC Youth League was founded in 1944. It served as a vehicle for younger leaders—including Nelson Mandela, Walter Sisulu, and Oliver Tambo—to challenge the moderate stance of the older ANC leadership and push for a more militant approach against segregation.21