The Singles' Day or Double 11, originally called Bachelors' Day, is a Chinese unofficial holiday and shopping season that celebrates people who are not in a relationship. The date, 11 November (11/11), was chosen because the numeral 1 resembles a bare stick, which is Chinese Internet slang for an unmarried man who does not add 'branches' to the family tree. The four '1's also abstractly refer to the demographic group of single people. Ironically, the holiday has become a popular date on which to celebrate relationships: more than 4,000 couples got married in Beijing on this date in 2011, far greater than the daily average of 700 marriages.