Q. How did Nelson Mandela contribute to the end of apartheid in South Africa?

This is a very complex topic, because Mandela did many things for a number of years to end apartheid. I would suggest you start by looking at a book on apartheid and Mandela. Go to the libraryhome page  and click on Search Books just above the search box. Type in "Mandela and Apartheid" and you will get 30 books. Look through the list and choose any of the books you think would be best for your topic. Books  will be found either on the fourth floor of the library or online.

Once you have a greater understanding of your topic you might think about narrowing it down in order to investigate a more specific aspect of Mandela's contribution. Please feel free to make an appointment with a librarian if you need further assistance.