The events of the week leading to the crucifixion and resurrection of Jesus of Nazareth happened at the time of the Passover. So where did Easter come from? The answer will surprise you.
Leviticus 23 tells us God appointed seven feasts. He actually made it clear that they are His feasts. Historically, each feast is connected to the exodus of the Israelites from Egypt and events that happened before the Israelites entered the Promised Land. They also all have a prophetic nature.
The first 4 of God’s feasts occur in the Northern Hemisphere Spring; our autumn. They are Passover, Unleavened Bread, Firstfruits, and the Feast of weeks (commonly, but incorrectly, known as Pentecost).
In the early 4th Century a dispute arose in the church over when to remember the crucifixion of Jesus. Some tied their celebration to the 14th day of the Jewish month of Nissan, the date of the Feast of Passover and the actual date of the crucifixion. Others did not. Roman Emperor Constantine wanted the issue sorted out. And so a decision was made at a council at Nicea in 325 AD to separate the church celebrations from the Biblical timeline they followed.
Constantine actually wrote to the bishops throughout the Roman Empire saying “We ought not therefore to have anything in common with the Jew, for the Saviour has shown us another way”.
The die was cast and a Christian season called Easter which replaced the Biblical timeline came into being. And that’s how it has been ever since.