Singles' Day, also known as 11.11 or Double 11, is a shopping holiday that originated in China and has become one of the world's largest online shopping events. It is celebrated on November 11th (11/11) each year. The holiday's name is a reference to the fact that the date consists of four "ones," symbolizing single individuals. Singles' Day began as a day for single people to celebrate their status, but it has evolved into a major shopping extravaganza.