World War I

Russell Crowe might be best known for his Academy Award-nominated performances in “A Beautiful Mind” and “The Insider,” or his Academy Award-winning role in “The Gladiator.”

For his latest film, “The Water Diviner,” Crowe also takes the director’s chair. The movie tells the story of an Australian farmer, played by Crowe, who is searching for his sons – all believed to have been killed in the battle of Gallipoli in 1915.

Updated at 12:50 p.m. ET

European leaders attended a ceremony marking the centenary of the massacre of an estimated 1.5 million Armenians by Ottoman Turks during World War I, as German lawmakers risked triggering a diplomatic row with Turkey by voting to acknowledge the historical event as "genocide" –- a charge Ankara has strongly denied.

A century ago, young men in Europe were killing each other by the tens of thousands. World War I, which had erupted just a few months earlier, was raging. Yet on a frozen Christmas Eve, the guns briefly fell silent.

The Christmas Truce of 1914 has become the stuff of legend, portrayed in films, television ads, and songs. On this 100th anniversary of the cease-fire, it is possible to reconstruct the events of that day from letters, diaries, and even the recorded spoken words of the men who experienced the truce.

Sometimes art can change how people see the world. But Anna Coleman Ladd made art that changed how the world saw people.

It was World War I, and soldiers were coming home from the battlefield with devastating injuries. Those who survived were often left with disfigured faces.

Nearly two dozen diaries and notebooks of Siegfried Sassoon — among a handful of prominent soldier-poets whose artistic sensibilities were forged in the trenches of World War I — are being published online for the first time by the Cambridge University Library.

Sassoon, who served in the British Army, was a "gifted diarist [who] ... kept a journal for most of his life," the library says.