Also known as the Great Vigil. The service begins in darkness and consists of four parts: The Service of Light (kindling of new fire, lighting the Paschal candle, the Exsultet); The Service of Lessons (readings from the Hebrew Scriptures interspersed with psalms, canticles, and prayers); Christian Initiation (Holy Baptism) or the Renewal of Baptismal Vows; and the Eucharist. You can learn more here.
Christ Episcopal Church is the oldest Episcopal church in northern Alabama, founded in 1828.