By r Soo yds.); on the western, southern and eastern faces the line of defence is almost straight, the only projecting points being the gateways, but on the northern face the contour is broken by a double outwork, consisting of the Ark or citadel, which is built of sundried brick on a high artificial mound within the enceinte, and a lower work at its foot, called the Ark-i-nao, or " new citadel," which extends ioo yds.
Reaches to the foot of the Koh-i-Mulla Khwaja, crossing the Jui Nao or " new " canal, which here divides the gravelcovered foot hills from the alluvial flats of the Hari Rud plain.
The city possesses five gates, two on the northern face, the Kutab-chak near the north-east angle of the wall, and the Malik at the re-entering angle of the Ark-i-nao; and three others in the centres of the remaining faces, the Irak gate on the west, the Kandahar gate on the south and the Kushk gate on the east face.
It is now known, however, that" Siam "or" Sayam "is one of the most ancient names of the country, and that at least a thousand years ago it was in common use, such titles as Swankalok-Sukhotai, Shahr-i-nao, Dwarapuri, Ayuthia, the last sometimes corrupted to" Judea,"by which the kingdom has been known at various periods of its history, being no more than the names of the different capital cities whose rulers in turn brought the land under their sway.
Meanwhile the ancient state of Lavo (Lopburi), with its capital at Sano (Sornau or Shahr-i-nao), at one time feudatory to Swankalok-Sukhotai, remained the last stronghold of the Khmer, although even here' the race was much modified by Lao-Tai blood; but presently Sano also was attacked, and its fall completed the ascendancy of the Siamese (Thai) throughout the country.