Today we join the world in honoring the life and legacy of Nelson Mandela, whose courage changed the world.

Madiba taught us a powerful lesson: It’s in our hands to create a better world. In recognition of Nelson Mandela Day, the United Nations MY World team and the Nelson Mandela Foundation are encouraging people to act for a better world by making their voices heard on their priorities for the post-2015 development agenda. You can take action here, and watch the video below to get inspired.