A whole body skeleton of Paleoparadoxia was excavated in Yanagawa on August 21, 1984. The skeleton is named the “Yanagawa Specimen”. The first humans to live within the bounds of present-day Date City are thought to have arrived during the Paleolithic Period. The area was part of ancient Mutsu Province. Towards the end of the Heian Period, Shinobu-gun (present day Fukushima City) and Date-gun (encompassing not only present day Date, but also Koori Town to the North and Kawamata Town to the South) were awarded to Date Tomomune. Tomomune founded the Date clan in present-day Hobara. The 17th lord of the Date Clan, Date Masamune lost control of the area and went on to found the Sendai Clan and the City of Sendai. The clan continued to rule over the Sendai Domain during the Edo period. However, under the Edo period Tokugawa shogunate, most of the area of Date was initially part of Yonezawa Domain, followed by Fukushima Domain and Yanagawa Domain before becoming "tenryō" territory under direct control of the shogunate. It was not part of the Date Clan's territories. After the Meiji Restoration, the area was organized as part of Nakadōri region of Iwaki Province.