The Fourth Great And Bountiful Human Empire

Having reached its peak somewhere in the one hundred and ninety ninth millenium onwards, the human race has spread far and wide across the galaxy, with thousands of colonies and trillions of citizens; Earth itself having developed a population of ninety-six billion and five artificial moons to boot. For anyone with some form of time travel, this can be one of the most breathtaking and humbling places to visit... as well as the most dangerous.