Hattuşa

Previously unknown Indo-European language discovered on clay tablet, more in the comments. Boğazköy-Hattusha in north-central Turkey was once the capital of the Hittite Empire, one of the great powers of Western Asia during the Late Bronze Age (1650 to 1200 BC). The site has been a UNESCO World Heritage Site since 1986 and almost 30,000 clay tablets with cuneiform writing have been found so far.