Easter and its related holidays are moveable feasts, not falling on a fixed date; its date is computed based on a lunisolar calendar (solar year plus Moon phase) similar to the Hebrew calendar.
Easter and the holidays that are related to it are moveable feasts, in that they do not fall on a fixed date in the Gregorian or Julian calendars (both of which follow the cycle of the sun and the seasons)
In some traditions, the children put out their empty baskets for the Easter bunny to fill while they sleep.
The Easter Bunny is a popular legendary anthropomorphic Easter gift-giving character analogous to Santa Claus in American culture.
