8 Days.
Shavuot (mistranslated as Pentecost) was fifty days after the Passover. Still is.
Thanksgiving.
Yes, so long as it's labeled kosher for Passover.
spain,mexico
it is a celibrated instrument
the chinooks celibrated potlaches
Communion is an invention of the Catholic Church. What is commonly referred to as Communion in the Bible is in fact Passover. Jesus expected His disciples to keep the Passover. "As long as you eat this (Passover) bread and drink this (Passover) cup you do show the Lord's death until He comes."
Christmas and Easter are two holidays.
thanksgiving
As long as it isn't during Passover.
Seven days, compared to eight in the Diaspora.
It is to pray for and remember the dead.