First Toilet And Sewer System Of Prehistoric Period Found In Van Anadolu Agency: 8/22/2004 VAN - The first toilet and sewer system of prehistoric period was found in an Urartian castle in Gurpinar town of eastern province of Van. In an interview with the A.A correspondent, Istanbul University Eurasian Archaeology Institute Director Prof. Dr. Oktay Belli said on Saturday that they had unearthed a toilet in the western part of Cavustepe Castle built by Urartian King Sarduri II in 764 BC. ''We revealed that Urartian architects had formed a sewer system before building the castle. The toilet and sewer system...