4. 50 years ago, Muhammad Ali became the heavyweight champion of the world

    9 photos of the fight that crowned a king




  7. On the 150th anniversary of the Gettysburg Address, we look at the soldiers - and their families - to whom Lincoln was speaking.

    Haunting Civil War portraits


  8. Presented without comment. 


  9. Photos taken over nine consecutive days demonstrate the air pollution levels in the sky over Tiananmen Square in Beijing. Air quality in Beijing has been at “very unhealthy” and “hazardous” levels since the beginning of this year. PHOTO: REUTERS/Wei Yao


  10. A crowd of Japanese people observe a moment of silence while facing the sea at 2:46 p.m. — the exact time a 9.0-magnitude earthquake struck off Japan’s coast two years ago. Across the country today, several events and rallies commemorated the devastating crisis that killed almost 19,000 people and stranded 315,000 evacuees. (PHOTO: REUTERS/Kyodo)

  11. Syria’s bloody civil war will hit its two-year mark this March, and still, embattled despot Bashar al-Assad clings to power. The all-consuming war has left more than 70,000 people dead — half of them civilians. Sadly, violent conflict has become the new normal in much of Syria,  and it’s often only while taking refuge behind Aleppo’s crumbled, pock-marked walls that Free Syria Army fighters can indulge in fleeting moments of their previous lives

    • A soldier tries to entice a stray cat to come a little closer in Khan al-Assal on Nov. 10, 2012. (REUTERS/Zain Karam)

    • Rebels pose with their weapons and a snowman in Homs on Jan. 10.(REUTERS/Yazan Homsy)

    • A fighter finds a moment to fix himself up a bit in Aleppo on Dec. 25, 2012. (REUTERS/Muzaffar Salman)

  12. On this day in 1972: In what was arguably the most dramatic trip ever taken by a president of the United States, Richard Nixon arrived in China for an eight-day visit. The announcement that Nixon, a lifelong hardline anti-communist, would visit China stunned the world. The United States and China had been foes for a quarter-century, but Nixon recognized the need for better ties — which would also help the U.S. in its Cold War standoff with the Soviet Union. During his week-long visit, Nixon met with Mao and Zhou En-Lai; it is seen today as the beginning of China’s drive to modernize and enter the modern world. China’s economy is now the world’s second largest, trailing only that of the U.S itself. Nixon called it “the week that changed the world,” and the phrase “Nixon going to China” has since become a metaphor for an unexpected or uncharacteristic action by a politician.

    Here’s what else happened on this day in history


  13. "Blade Runner" Oscar Pistorius breaks down at his bail hearing in Pretoria, South Africa. The Paralympic superstar is accused of fatally shooting his 30-year-old girlfriend, Reeva Steenkamp

    (AP Photo/Antione de Ras - Independent Newspapers Ltd South Africa)