Easter and April Fool's Day Are On Same Day April 1st

Easter April 1st
Easter celebrates the resurrection of Jesus Christ. The day of Easter falls on a Sunday based on the lunisolar calendar, not a fixed date on the Gregorian or Julian calendar. It has been determined to fall on the Sunday after the full moon following March 21 for Western Christians.

Thus Easter will fall between March 22nd and April 25th each year. 

The foundation of the Christian faith from the New Testament is the resurrection of Jesus from his crucifixion 3 days earlier which is observed as Good Friday. 

This establishes Jesus as the Son of God. Those who believe in Jesus' death and resurrection are calendar "a new birth" and receive eternal salvation. Jewish Christians were the first to observe Easter.Numerous churches hold Easter services celebrating the resurrection of Jesus Christ from his crucifixion. The Easter lily is a symbol of the resurrection. 

Easter eggs are made using hard boiled eggs dipped in colored dye on the outside. Easter candy is hidden in plastic eggs. Both are used in Easter egg hunts organized by churches, local businesses or families. An Easter basket is used to collect the eggs. The Easter bunny is also a symbol of the holiday.
Why A Fool's Day?

There are several theories about the origin on the April Fool's Day custom. One explanation focuses on the introduction of the Julian and the Gregorian calendar. From ancient times, people in some parts of Europe celebrated the New Year on or around the March Equinox. However, the new calendar systems defined January 1 as the first day of the year.

People who forgot about the change or observed the old rules for other reasons became victims of various jokes. For example, pranksters would discreetly stick paper fish to their backs. In France, the victims of this prank were called Poisson d'Avril, or April Fish.

Biblical theories

Another belief on the April Fool's Day origin points to the biblical character Noah as the first “April Fool”. It is said that on April 1, he mistakenly sent the dove out to find dry land before the waters subsided.

A second story tells that the day commemorates when Jesus was sent from Pontius Pilate to Herod and back again. "Sending a man from Pilate to Herod", is an old term for sending someone on a fool's errand.

April Fool's Day in History

Practical jokes and pranks date back to Ancient Roman times. Ancient Romans and Celts celebrated a festival of practical joking around the time of the March equinox.

The Origin of “Fool's Errands”

According to Roman myth, the god Pluto abducted Proserpina to the underworld. Her mother Ceres only heard her daughter’s voice echo and searched for her in vain. The fruitless search is believed by some to have inspired the tradition of “fool's errands”, practical jokes where people are asked to complete an impossible or imaginary task.

All Fool's Day in British Folklore

British folklore links April Fool's Day to the town of Gotham in Nottinghamshire. According to the legend, it was traditional in the 13th century for any road that the king placed his foot upon to become public property. So when Gotham’s citizens heard that King John planned to travel through their town, they refused him entry, not wishing to lose their main road. When the king heard this, he sent soldiers to the town. But when the soldiers arrived in Gotham, they found the town full of fools engaged in foolish activities such as drowning fish. As a result, the king declared the town too foolish to warrant punishment.