What is Easter all about, reallly?

 
Easter celebrates the resurrection of Jesus after his crucifixion.
Christians believe Jesus was crucified on Good Friday and rose again three days later. The three days are known as the Easter Triduum.
The Easter season begins on Ash Wednesday - the first day of Lent.
Lent lasts 40 days - if you leave out the six Sundays in between Ash Wednesday and Easter Sunday - and is a time when Christians fast, or give up a particular food or vice. The fasting period is to remember when Jesus went into the wilderness and fasted for 40 days.
Ash Wednesday takes place after Shrove Tuesday, or Pancake Day, when rich foods like eggs are used up before Lent and the fasting period begins.
The Easter week, also known as Holy Week, and includes Maundy Thursday, which marks the Last Supper Jesus had with his 12 disciples.