Happy Singles' Day! Not sure what that means exactly? I wasn't either until I started seeing the phrase pop up in emails over the past week or two. Turns out, today is one of China's largest shopping days—the equivalent of Cyber Monday. The holiday was started in the '90s, as a comical way to shop away loneliness with a date meant to play on singledom too (11/11 is a whole lot of ones after all). Now, the day is one of the world's largest online shopping days. Alibaba, China's largest e-commerce site, had sales of $1 billion in the shopping event's first five minutes (seriously).