Callisto (Haven) 212,820pages on this wiki Add New Page Edit this page History Add New Page Discuss this page0 Callisto is an urbanized moon. It was first colonized by humans in the year 2137. The number of Houses increased as the population of the entire system did. The entire city is called New Paris. Retrieved from "http://scratchpad.wikia.com/wiki/Callisto_(Haven)?oldid=261569"