By Michael Gryboski, Editor Sunday, April 20, 2025Getty Images Plus/LumerBChurches across the United States and abroad will celebrate Easter on Sunday, a holy day commemorating the resurrection of Jesus, as recorded in the New Testament.Also known as Resurrection Sunday, the observance is among the holiest days of the Christian calendar and often sees some of the largest numbers for worship attendance in a given year.The religious observance has a long history, going back to the earliest days of the faith, and has seen its share of debates over matters like when to celebrate it in a given year.Get Our Latest News for FREESubscribe to get daily/weekly email with the top stories (plus special offers!) from The Christian Post. Be the first to know.Here are five interesting historical facts about Easter Sunday. They include questions about the origin of the word Easter, the first recorded sunrise service, and the oldest known Easter-centered sermon.Follow Michael Gryboski on Twitter or Facebook