Joseph Priestley (1733–1804) was an esteemed English theologian, chemist, and innovative grammarian, whose interdisciplinary prowess spanned across several fields of interest, with significant contributions to both the sciences and humanities. He is highly regarded for his discovery of oxygen, which he termed «dephlogisticated air.» Aside from his notable feats in the realm of natural philosophy, Priestley was equally committed to political and educational theories. «An Essay on the First Principles of Government» is one of his seminal works, advocating for civil liberties and democratic governance, elements that were influential during the Enlightenment era (Priestley, 1768). A voluminous writer and a polymath, Priestley»s literary style often melded empirical observations with rational discourse, reflecting the tenets of the age of reason. His works are characterized by their advocacy of religious rationalism, materialism, and dissent from orthodox doctrines, which gained him both acclaim and criticism during his lifetime. Priestley»s intellectual legacy transcends his era, influencing subsequent generations in multiple domains, from philosophy and theology to socio-political thought and the natural sciences.