Historical bishops were leaders in the Christian church who played significant roles in shaping religious practices and governance. They were often responsible for overseeing multiple congregations, providing spiritual guidance, and maintaining church doctrine. Notable figures include St. Augustine of Hippo, who contributed to early Christian theology, and St. Nicholas, known for his acts of generosity. Throughout history, bishops have also been involved in political matters, influencing rulers and societal norms. The Council of Nicaea in 325 AD, convened by Emperor Constantine, is an example where bishops gathered to address key theological disputes, establishing foundational beliefs for Christianity.