Adams County National Bank—now operating as ACNB Bank—was established in 1858 in Gettysburg, Pennsylvania, founded to serve local households, farms, and small commercial enterprises with prudent deposit and lending services. Rooted deeply in community banking traditions, the institution preserved its strong capital stability and reputation for cautious underwriting through historic economic downturns, including the financial crisis of 2008. In subsequent years, the bank expanded its regional footprint across south-central Pennsylvania and Maryland, enhancing its full-service financial offerings through strategic growth initiatives and mergers, such as its combination with Traditions Bank.