For the low key, secular occasion, the Pope wore a long white overcoat in marked contrast to the more elaborate vestments he has worn throughout the rest of his six-day visit to the United States.

为这个低调的世俗场合，教皇穿了一件白色长大衣，这与他在美国的六天访问中始终穿着比较精美的正式服饰形成鲜明对比。

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He was the first Pope to visit the White House.

他是访问白宫的第一位教皇。

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The crowd on the South Lawn of the White House sang Happy birthday to Pope Benedict, in celebration of his 81st birthday.

白宫南草坪的人群唱起祝教皇本笃生日快乐的歌曲，庆祝教皇81岁生日。

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On his way to Tuesday's Mass, Pope Francis rode in an open, white jeep, instead of the bulletproof pope-mobile often used by his predecessors, stopping to greet well wishers and getting out of the car to bless a disabled person.

WSJ: Pope Francis Celebrates Inaugural Mass

According to Vatican lore, the smoke is black (due to the fact that the ballots were mixed with damp hay) when a decision is still to be reached and white when a new pope has been decided.

CNN: Pope's resignation a new angle to a tough news beat

White smoke means the 266th pope has been chosen.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty