Druid was started in 2011 by Eric Tschetter, Fangjin Yang, Gian Merlino and Vadim Ogievetsky to power the analytics product of Metamarkets. The project was open-sourced under the GPL license in October 2012, Tschetter, Eric. , druid.apache.org, 24 October 2012Higginbotham, Stacey. , GigaOM, 24 October 2012 and moved to an Apache License in February 2015.
