Antarctic explorer Ernest Shackleton died of a heart attack aboard the Quest off South Georgia, on the eve of his fourth polar expedition.

British forces began formally handing over Dublin Castle and other key installations to the new Irish Provisional Government following the Anglo-Irish Treaty.

James Joyce's novel 'Ulysses' was published in Paris on his 40th birthday, a landmark of modernist literature that had been banned as obscene in English-speaking countries.

The United States, Britain, Japan, France, and Italy signed the Washington Naval Treaty, capping battleship tonnage to prevent a costly naval arms race.

George Herbert, Lord Carnarvon, arrived at Luxor to join Howard Carter for the opening of Tutankhamun's tomb, setting the stage for one of archaeology's most sensational discoveries.

Howard Carter's workmen uncovered a stone step in the Valley of the Kings, leading to the sealed tomb of Tutankhamun.

Archaeologist Howard Carter's workmen uncovered a stone staircase in the Valley of the Kings, the first clue to the untouched tomb of Tutankhamun.

Archaeologist Howard Carter and financier Lord Carnarvon broke through the sealed doorway into Tutankhamun's burial chamber, unveiling treasures untouched for 3,000 years.

British archaeologist Howard Carter and his team broke through a sealed doorway to peer into the antechamber of Tutankhamun's tomb, glimpsing treasures untouched for 3,000 years.

News of Howard Carter's discovery of Tutankhamun's tomb, opened weeks earlier, spread through the world's press, igniting a craze for ancient Egypt that reshaped museums and fashion alike.

Howard Carter chiseled a hole into the sealed doorway and, by candlelight, saw the glint of gold that had waited over 3,000 years.

The First All-Union Congress of Soviets convened in Moscow, formally establishing the Union of Soviet Socialist Republics.

Delegates in Moscow signed the treaty creating the Union of Soviet Socialist Republics, uniting Russia, Ukraine, Belarus, and the Transcaucasian republics into a single Communist state.

Archaeologist Howard Carter's team continued the painstaking clearance of Tutankhamun's antechamber in the Valley of the Kings, revealing thousands of dazzling artifacts to a stunned world.