Sapinuwa (sometimes Shapinuwa; Hittite: Šapinuwa) was a Bronze Age Hittite city at the location of modern Ortaköy in the province Çorum in Turkey about 70 kilometers east of the Hittite capital of Hattusa. It was one of the major Hittite religious and administrative centres, a military base and an occasional residence of several Hittite kings. The palace at Sapinuwa is discussed in several texts from Hattusa. Ortaköy was identified as the site of ancient Sapinuwa after a local farmer contacted Çorum Museum; he found two clay cuneiform tablets in his field. This led to a survey conducted in 1989, and more discoveries. Ankara University quickly obtained permission from the Ministry of Culture to begin excavation. This commenced in the following year, in 1990, under the leadership of Aygül and Mustafa Süel, and have continued since. Building A was excavated first, and then Building B in 1995. The building with the Yazılıkaya-style orthostate and 14th century BC charcoal was excavated after 2000. Aygül Süel has been the head of excavations at this site from 1996 onward. In the first excavated region was a Cyclopean-walled building dubbed "Building A". Building A has yielded 5000 tablets and fragments, dated to the time of Hittite ruler Tudhaliya II (c. 1360 – 1344 BC). They were stored in three separate archives on an upper floor, which collapsed when the building was burnt. At Kadilar Hoyuk, 150 meters southeast of Building A, "Building B" has proven to be a depot filled with earthenware jars. Another building features an "orthostat that looks like the relief of Tudhaliyas at Yazilikaya". The fire which destroyed Sapinuwa also damaged its archive. Most of the tablets are fragmentary, and must be pieced together before interpretation and translation. Identification of the site as Sapinuwa immediately corrected a misunderstanding in Hittite geography. Due to the archives so far discovered at Hattusas, Sapinuwa had been thought to be a primarily Hurri-influenced city. Scholars of the Hattusas archive therefore positioned Sapinuwa to the southeast of Hattusa.