Louis C.K. remembers getting "really big laughs" during his third try at stand-up. "I was so excited that I had a little foot in the door," C.K. says. He's pictured above in his FX series Louie.
On April 4, 1975, a Lockheed C-5A Galaxy participating in Operation Babylift crashed on approach during an emergency landing at Tan Son Nhut Air Base, South Vietnam.
Courtesy of Bud Traynor
In the 1950s, the World Bank funded the creation of the world's largest man-made dam, the Kariba Dam, which sits on the border of Zimbabwe and Zambia. The construction of such dams can have dire consequences for poor people living near a river, an investigation found.
Jekesai Njikizana/AFP/Getty Images
As China continues its massive economic growth, especially in cities, the government continues to severely limit people's rights. Is that system sustainable?
Johannes Eisele/AFP/Getty Images
A protester in front of Sen. Marco Rubio's Doral, Fla., office in 2013 urges Rubio to stop opposing the inclusion of lesbian, gay, bisexual and transgender families in the Senate's immigration bill.
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