According to another historical account the earliest remains of hay were found in central european archeologicalEuropean archaeological sites from the late stone age. Dyson has the right place but wrong time. The romansRomans, greeksGreeks, and chineseChinese might have used hay, but it is one thing that predates their civilizations. Again its earliest finds are in europeEurope north of the alps and east of the rhineRhine centuries before the middle ages.