about 1 percent of the world.
By learning the Torah and observing its mitzvoth (commands).
Synagogues are place of worship and community for people of the Jewish faith.
Today show host Savannah Guthrie was not raised Jewish. She has her own faith, but is married to a Jewish man.
The Jewish faith was started by God. Jesus was born into the Jewish faith and started Christianity (today's Catholicism). From Catholicism came Luther's new religion which has regenerated hundreds of times to form today's Protestants, Episcopals, Baptists, etc.
If you are a Jewish single who doesn't know where to meet other single people who share your faith, the Internet is a great resource. Online dating is very popular today, and one of the reasons is that there are many websites dedicated to helping people meet others of their same faith. Try typing in a phrase like "meet Jewish singles" and then be prepared to spend a couple of hours looking at the exciting and interesting results.
There is no universal spiritual leader of the Jewish people. However, certain Chassidic sects follow a Rebbe, which is a kind of spiritual leader.
The Jewish people originated in Israel, but today there are also Jews in almost every country on the planet.
about .2%. I don't know exactly how many people though
The Jewish people are descendants of the Israelites.
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No. There is no Temple in Jerusalem, so the sacrifices are not performed by the Kohanim or Jewish Priests. Judaism of today is primarily concerned with prayer.
by Jewish people (the same as today).