"And when he had apprehended him, he put him in prison, and delivered him to four quaternions of soldiers to keep him; intending after Easter to bring him forth to the people" (Acts 12:4).
“Easter” Eostre (Etymology): Saxon origin and denotes a Saxon goddess of the dawn. Sacrifices were offered to her during the Jewish festival of Passover. The name “Easter” later reflected the festival of the Resurrection of Jesus (of course, occurring at the time of the Passover).
Most conservative scholars believe the word “Easter” translated as such in the KJV to be poor as the other 28 times it appears in the Bible, it is always translated “Passover.”
Much like “Christmas,” “Easter” is a holiday celebrated religiously around the world. One celebrating His birth, and the other His resurrection. Neither of which are referred to in Scripture as days of remembrance for Christians.
Good days? No question. Positive focus? Absolutely. Should we celebrate? Ask God.