King James Bible Acts 12:4
And when he [Herod] had apprehended him [Peter], 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.
New King James Version
So when he had arrested him, he put him in prison, and delivered him to four squads of soldiers to keep him, intending to bring him before the people after Passover.
Why is there this difference in translations of Easter and Passover in the old and new KJV?