How did Nelson Mandela help to end apartheid in South Africa?

Jon snow and the origin of epidemiology; "you know nothing, john snow." 1. compare the two different types of medical professions of the 19th century. what modern professions would compare to these

Which of the following is considered a push factory a. available jobs b. unfair treatment c. religious freedom d. affordable land

How does sociology account for the cause of drug and alcohol addiction?