Analysis of information sources in references of the Wikipedia article "고르 제국" in Korean language version.
In 1201 Ghurid troops entered Khurasan and captured Nishapur, Merv, Sarakhs and Tus, reaching as far as Gurgan and Bistam. Kuhistan, a stronghold of the Ismailis, was plundered and all Khurasan was brought temporarily under Ghurid control
In 1205, Bakhtīyar Khilji sacked Nudiya, the pre-eminent city of western Bengal and established an Islamic government at Laukhnauti, the capital of the predecessor Sena dynasty. On this occasion, commemorative coins were struck in gold and silver in the name of Muhammad b. Sām