The Solace Station was built many thousands of years prior to the Battle of Yavin by the Rakata, rulers of the Infinite Empire. Then, it was used as an observation post to watch over the colonies and slave worlds of the Infinite Empire, to ensure that they remained in check. It was not the only station of this type in the Galaxy; judging by its technology, at least nineteen others would be needed to keep track of all planets in the Galaxy on long range sensors.