President Ellen Johnson Sirleaf's Kennedy School Class Day address
Listen to the live audio recording.
1. Kennedy School dean David Ellwood introduces President Sirleaf.
2. Graduation Address
President Ellen Johnson Sirleaf, M.P.A. '71, of Liberia, Africa's first elected female president, delivers the 2008 graduation address at the Harvard Kennedy School.
Harvard historian Serhii Plokhy’s latest book looks at the rising danger of a new arms race.
Humans have been dreaming of living on the Red Planet for decades. Harvard researchers are on the case.
At Cambridge Math Circle, faculty and alumni share puzzles, riddles, and joy.
