The 'Catholic Encyclopedia' began publication in New York City, United States, designed to provide a comprehensive reference work focused entirely on Catholic doctrine, history, and science. Produced under the guidance of prominent Catholic scholars, the encyclopedia sought to articulate an official Catholic intellectual perspective on modern scientific discoveries, historical events, and social issues, serving as an authoritative counterweight to secular reference works.

This encyclopedia provided a deep repository of medieval theology, scholastic philosophy, and liturgical history that heavily influenced Catholic literary figures. Poets like G.K. Chesterton and Gerard Manley Hopkins' later readers utilized its entries to decode the dense theological architecture of Catholic verse.