Passover
Passover or Pesach is in Judaism a major holiday commemroating the Exocdus myth, the founding myth of the israelites.
Politically correctly it is described as the Israelites escaping from Egyptian slavery, a less politically correct view being that the name refers to the Israelites themselves escaping the mass killing of non-israelites by the Israelite God. Despite objecting to the Israelites being enslaved, the Israelites did not prohibit slavery by the Israelites themselves.