How did easter come about when jesus christ died on the cross

How did easter come about when jesus christ died on the cross for our sins?

the whole purpose Of Our lord Jesus being was to bring the good news, to fulfill the scriptures. To bring the Messiah to open the gates to heaven. Jesus's whole existence from His birth and his protective flight into Egypt was all prophezied and documented.
Jesus was a Jew and He died a jew. The announcing of Jesus was way before His time.
The reason why the Jews where the chosen people of God was because they where the first to say we have only one God. Always was and always will be, no beginning and no end. Remarkable nothing we could comprehand or understand the tremendous intellect of God and we with our meager brain capacity keep trying to understand a supreme Being.We know that all things have a cause and effect but God is our cause and we and all the universes and universes were designed and created by one Supreme Being ,GOD. and all this is His effect. So along came Jesus , God's only begotten son. He took on one of our bodies. Mary became the choosen one beautiful virgin and she was impregnated. If God can move mountains and design universes He can do whatever he wanted too. Mary said, yes when God sent His angel and loo and behold came our saviour Jesus Christ. Story you think no, no this is all documented in Bethlehem and Jerusalem. For all you doubting Thomas check it out, THIS IS NOT MAKE BELIEVE! JESUS DID EXISTS AND HE STILL DOES . After He was brutally murdered for saying the truth and stating who he was'I AM' when asked if he was the messiah of the jews. All the miracles, all the prophets, all the messengers all the followers of Jesus, none of the jewish leaders believed Him. They screamed blasphmer and demaned His execution. Jesus predicted his dimiss at the last supper and he instructed His apostles to follo His teachings andblessed the unleavened bread and said this is my body eat it and the He blessed the wine in His goblet and said 'this is My blood , drink it' 'DO THIS IN MEMORY OF ME' The miracle of changing the wine into blood of Jesus and the bread into His body happens every minute of the day throughout the catholic church in every Mass that is said throughtout the world, every second now, that is a forever miracle performed By Jesus two thosands years ago.

why
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but putting this information aside