Center for Data Innovation: “The New York Times has created a data visualization illustrating how the size of territory controlled by ISIS has grown and shrunk since 2014. In 2014, ISIS controlled several important cities in Iraq and Syria, seizing control of over 50 cities and towns in June 2014, and growing to control nearly every province in Syria and northern and central Iraq by 2017. Throughout 2017, ISIS suffered heavy losses and though not defeated, now only controls a small handful of areas.”