The Chelonian Empire was the empire of the Chelonian race of Chelonia. It spanned across verdant planets that could grow the flowers and seeds that Chelonians fed on. The empire was led by a God-Mother whom was referred to as "He".
The Chelonian empire was an extremely long lived empire, having endured for billions of years. (PROSE: Zamper) The Chelonians were one of the races that made up the the Alliance, which went to Stonehenge in 102 to imprison the Eleventh Doctor in the Pandorica. (TV: The Pandorica Opens)
Sometime prior to the 27th century, the Chelonian Empire went into decline. (PROSE: Fegovy) By the 30th century, the empire posed a threat to the Earth Empire. (PROSE: Original Sin) In 5968 the Chelonian Empire signed a treaty with humanity on Florana. (PROSE: The Hungry Bomb)
At some point prior to 5995 the Chelonian's Empire collapsed with the last of its warriors travelling to Zamper in an attempt to restore the glory of the empire. (PROSE: Zamper) Circa 5,000,000,000, the Chelonian Empire still existed, controlling a number of breeding planets. (PROSE: The Body Bank) Chelonian troops from the past ended up in 10,000,000,000 and laid claimed to the planet Barclow for the Chelonian Empire. They ended up warring for over a hundred and twenty years with humans for the planet. (PROSE: The Well-Mannered War)