According to the Star Trek: Star Charts (p. 32), in 2183, after the first manned landing by the SS Horizon, an Earthcolony was founed on this planet. Within months of being founded, the Izar colony was admitted to the United Federation of Planets. The dominant species were Humans. In 2370, the census counted 185 million living on this planet. The planetary capital was New Seattle. Major attractions on this planet included the Starfleet Tactical School and the Izar Institute of Meteorology. This world was a stop on the major space lanes of the late 24th century.