Easter is a Christian festival celebrating the resurrection (rising from dead) of Jesus Christ after his crucifixion on Good Friday, which is a public holiday in most parts of the world. Mostly, Easter is a movable Holiday and is celebrated on the First Sunday between March 22 and April 25 in accordance to the Vernal or Spring Equinox.
Wishing all a Very Happy Easter. May there be new hope for humanity all around the globe!
For a detailed meaning and information of Easter, see these links: