China's Singles Day falls every year in November. You can literally see why when the date is written out, 4 single one's which can be seen to represent 4 single people. In 2009, the retail giant Alibaba used the day to promote an online sale advertising thousands of brands not just from China but from all over the world. It was now morphed into the world's biggest online shopping day of the year.

How "double eleven" is changing our lives?