Palm Sunday is a Christian moveable feast that falls on the Sunday before Easter.
In some traditions, the children put out their empty baskets for the Easter bunny to fill while they sleep.
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.
September 13 is National Peanut Day, a day to pay homage to mighty and tasty peanut.