It's Nelson Mandela International Day, a day of service celebrated on July 18, Mandela's birthday. Mandela, the former president of South Africa and Nobel Peace Prize recipient, died at 95 on Dec. 5, 2013. This is the first time the day has been celebrated since his death.
USA Today: World marks Nelson Mandela Day (TIMELINE)
More than 100 countries worldwide are set to join South Africa in its commemoration of Nelson Mandela International Day.
