There's also a reference to the planet Nusquam Fundumentibus ("arse finish of nowhere"). In "The Almost People", the Doctor calls Rory "Roranicus Pondicus" in reference to his time as "Rory the Roman". Natchez - tribal identify of individuals who lived to the south west in current-day Mississippi, which had major trade with the indigenous Yuchi and Muscogee of the existing-day Nashville area, liable for making the Natchez Trace.