Byzantium is an interesting world.  Founded by Constantinople in 2151, it was the first non-Global Three colony.  Located in the Arcturus system, it was also the farthest colony of the time, on the edges of the stellar dust cloud our own Sun is flying through.  Byzantium was built as a neutral port of call for any nation, and soon became a major trade center as we continued to expand.  It still is now.  I should know.  I keep the orbital traffic lights on schedule.