Every July 18, as the sun sets on Nelson Mandela’s birthday, South Africans—and increasingly the world—pause in reflection. Mandela Day is more than a calendar event; it is a calling. It ...

Cuba’s President Raul Castro Ruz speaks during the memorial service for former South African president Nelson Mandela at the FNB Stadium in Soweto near Johannesburg, Tuesday, Dec. 10, 2013.

Centred around Nelson Mandela’s birthday today (July 18), this annual observance transcends mere commemoration. It is a global call to action, a reminder of the power of individuals to shape a ...