Settled 1253 BCE, Horax is a GWC 1A Pan Saran world.
It has a NiOx atmosphere, 1.12g gravity, and is extensively terraformed.
Notably, about 50 BCE (OTT) the men of Horax and 74 other colonies revolted against the Saran matriarchal society. This revolt tore the Saran Empire more or less in half resulting in the Pan Saran/Saran Civil War. The rebellion grew and declared the founding of a Republic and called themselves Pan Saran (Pan meaning Man in the Saran language).