Tony Hsieh, 46, has retired as the chief executive of the online shoe and clothing retailer Zappos.com after nearly 20 years at the helm. He has been replaced by the company’s chief operating officer Kedar Deshpande.

Zappos started as Shoesite.com, founded by Nick Swinmurn. The company’s name was changed to Zappos in 1999 and Hsieh became CEO in 2001.

In 2009, Zappos was acquired by Amazon in an all-share deal worth some $1.2 billion.