Pusso is the second great civilization in rita. It's history is listed in this quote from banu:
"After the first wave of people in the land that came to be called rita, the land slowly developed. A culture was developed that was unique to rita.
Scholars quested to understand magic, in the typical human form. Cities and villages were built to house the people.
After rita, the founder, passed into the heavens, there was a lack of power. rita was meant to be the home of magic, and the land of good people, understanding and the gods. However, the humans on rita became greedy once again. They forgot the most important values of understanding, love, trust, and faith, and quested to take over the land and gain wealth. Scholars had lower influence, and mages were seen as wasting their time. Wars, which were before looked down on, broke out around the land. Walls were built, blocking whole communities off.
Instead of being a united community, the whole land broke into civil war. People claimed new land and refused to let others in. Several people declared themselves the heirs of rita, of which he had none.
hi’ looked down and thought of himself as a failure. But mi’, the god of truth and decisions, came to his aid and they realized together that rita needed leadership. They would need someone on the outside. They got a leader from earth.
On earth, the first plane, life had gone on as it had before, though without the direct help from the gods. On a small kingdom, in an island to the east, Prince Pusso the great ruled, as his father was ill and unfit to make decisions. His people were happy. He led them with the great values.
But he was not fulfilled. He saw the tragedies of earth and was desperate to leave it.
hi’ and mi’ saw this man and thought he was perfect. They came to him in a dream and explained their forgotten history. They told him his duty. They told him the true gods would be with him the whole time. pusso awoke and knew what he must do.
Pusso climbed to the top of his tower. He told his people gathered below the promise of a new land, a land without tragedy. He looked up to the stars and prayed, the second Great Prayer. and he and his people disappeared into the night."
The lands that Pusso took over took in the culture of the original earth empire, and Pusso slowly got adapted into the land of rita.