We learn from Oriental writers that one of the Buyid (Buwaihid) sultans in the 10th century of the Flight constructed the great cisterns, which may yet be seen, and have been visited, amongst others, by James Morier and E.
Gore-Ouseley, Travels in Persia (1811); Morier, Ker Porter, Rich and others; Texier, Description de l'Armenie et la Perse;.
Morier says of Karim Khans family, it was a low branch of an obscure tribe in Kurdistan.
Captain Wiliock succeeded Morier as charg daffaires in 1815, and since that period Great Britain has always been represented at the Persian court.
The works of James Morier, especially his Adventures of Hajji Baba of .Tspahan, throw much light on Persian society in the early years of the 19th century.