Zions Bank traces its historical origins back to the establishment of Zion's Savings Bank and Trust Company, which was founded in October 1873 by Brigham Young alongside other community and business leaders in Salt Lake City, Utah. Created during the post-pioneer era to foster regional economic development, encourage personal thrift, and finance vital local infrastructure projects, the institution played a foundational role in building the commercial banking architecture of the American Intermountain West, eventually evolving through mergers and expansions into the modern multi-state financial services holding corporation operating today.