Please translate the given English sentence to Hindi
मेसोपोटामिया में ऊर, व्यापार का ऐसा फलता - फूलता केंद्र था जो फारस की खाड़ी के देशों और शायद सिंधु घाटी के पास बसे देशों के साथ लेन - देन करता था ।
Sir Leonard Woolley, who directed the systematic excavation of Ur, points out that in Abrahams time most houses there were built of brick, with plastered and whitewashed walls.