Yes, though some Christian groups have a holiday with the same name.
Passover is one of the three most observed Jewish holidays. The other two are Rosh Hashana and Yom Kippur.
As far as the first religious holiday that was celebrated, the most supported holiday is the Jewish Passover. However, the oldest holiday that was celebrated is New Years which is a celebration that begun around 4,000 years ago, celebrated by the ancient Babylonians.
The holiday of Pesach (Passover) is one of the most important holidays of the Jewish year.
According to what I've found out it is Passover
No, Yom Kippur is the holiest day of the Jewish year.
No, Passover and Yom Kippur are two completely different holidays observe at completely different times of year. Passover is when Jews recall the exodus from Egypt. Yom Kippur is a fast day when Jews atone for their mistakes of the previous year.
Passover commemorates the Exodus from Egypt, but no one knows exactly when or where it was first celebrated as a holiday. If it's as old as the event it commemorates, it was most likely first celebrated in Israel.
Most Norwegian people are Jewish, so probably Hanukkah, Passover, etc.
Most people think Kwanzaa is and African holiday, but it actually started in North America, and is predominantly celebrated by African Americans. Christmas was traditionally a Christian holiday because that was when Jesus was supposedly born. It is celebrated in most countries that have significant Christian populations as a holy and/or a commercial Holiday. Hanukkah, also spelled Chanukah, is a Jewish holiday commemorating the Jewish victory against the Assyrian-Greeks in the Maccabean War of 165 BCE. It is celebrated by Jews in all countries they live in.
The world's most celebrated holiday is Valentine's Day.
No, New Year is the most celebrated holiday, although it may not be on the same day for everyone.
Yes, because Passover is a Jewish festival. see also:What_do_Jews_do_when_celebrating_passover
I'm pretty sure that the most celebrated holiday in I ndonesia is a holiday called fasting month of Ramadhan.