The York County History Center (YCHC) is a not-for-profit educational institution that preserves and uses its collections, historic sites and museums to inspire people to explore the history and culture of York County, Pennsylvania. YCHC maintains eight historical sites that preserve and present 300 years of York County's rich and diverse history. The YCHC was founded in 1999 after a merger of the Historical Society of York County and the Agricultural and Industrial Museum of York County (AIM).