It is a e-commerce company timeline from 2015 to 2019.In 2015,the company was established. And the company began to promote its product via email in 2017. In 2019,the company was listed.During 2015 to 2019,the company had launched many products. The timeline is a list displayed in chronological order. It is usually a graphic design, displaying a long bar with a date parallel to it, usually a contemporaneous event.