Complex sentence: Following the Soweto student uprising in 1976, there was a significant increase in South African emigration to the United States, many of whom were South African Jews who formed a community in the northern suburbs of Chicago.
Split into simpler sentences: Following the Soweto student uprising in 1976, there was a significant increase in South African emigration to the United States. Many of whom were South African Jews who formed a community in the northern suburbs of Chicago.