Short answers, pulled from the story.
The English word bishop derives from the Greek term episkopos, meaning overseer or supervisor. This Greek word existed for centuries before Christianity emerged as a religion and was later transmitted into modern usage through Latin and Old English languages.
In the second century, Ignatius of Antioch used the distinct sense of episkopos to mean bishop rather than presbyter. Before this distinction became clear, early Christian communities often used terms interchangeably in their writings about church offices.
As Roman authority failed in the western portion of the empire, the church took over much civil administration. Western bishops acquired significant civil power when state structures collapsed, with figures like Pope Leo I serving as statesmen and public administrators alongside their pastoral roles.
Marjorie Matthews was the first woman consecrated as bishop in the United Methodist Church in 1980. Barbara Harris became the first woman consecrated as bishop within Anglicanism in the United States in 1989, and Teresa E. Jefferson-Snorton is the only female bishop in the Christian Methodist Episcopal Church as of 2024.
Traditionally, a number of items are associated with the office of bishop, most notably the mitre and crosier. Catholic bishops wear purple cassocks with amaranth trim and pectoral crosses, while Eastern Orthodox bishops wear mandyas, panagia, sakkos, omophorion, and Eastern-style mitres without episcopal rings.