Nelson was born on July 18th 1918
https://www.reference.com/history/did-nelson-mandela-fight-fa3361cde00a505e
https://www.reference.com/history/were-nelson-mandela-s-leadership-qualities-83b202be50d66dbc
http://www.huffingtonpost.com/2013/05/10/nelson-mandela-inauguration_n_3253006.html