Singles’ Day – Wikipedia

The Singles’ Day (Chinese: 光棍节) or Double 11 (Chinese: 双11), is a Chinese unofficial holiday and shopping season that celebrates bachelors, and single people in general.The date, November 11 (11/11), was chosen because the number “1” resembles a “bare stick” (Chinese: 光棍; pinyin: guānggùn), which is a Chinese Internet slang for a single man who doesn’t marry and thus can’t add …

https://en.wikipedia.org/wiki/Singles%27_Day