See related links.
As groups of Jews moved to new locations.
Yes. Judaism started either in Haran, Turkey/Syria (where Abraham became a monotheist), the Mount Sinai, Sinai Peninsula, Egypt (where Moses received the Ten Commandments), Biblical Israel (where the Jewish religion developed and where post-Temple Judaism also came from), and Babylon, Iraq (where Western Scholars believe that Judaism developed). All four locations are in Southwest Asia.
Judaism and Christianity. Many stories in the Christian Bible and the Koran have the same or similar stories but change the names and locations. Many teachings and principals are similar or the same.
At the present time (early 2013), just over half of the Jews in the world live in Israel, and the rest ... slightly less than half ... live in roughly 130 other countries. Wherever Jews are, that's where Judaism is practiced to a greater or lesser degree.
Judaism is called Judaism.
There are no rooms in Judaism. Judaism is a religion, not a building.
Opposite of the lack of Judaism? Judaism.
Judaism's real name, in English, is "Judaism".
Christianity and Judaism
Lots of those. In more or less the order of most traditional to least traditional, here are some: Modern Orthodox Judaism Masorti (Traditional) Judaism Conservative Judaism Reform Judaism Liberal Judaism Reconstructionist Judaism Renewal Judaism Humanistic Judaism
Judaism itself is one religion; the religion of Judaism. See also:Divisions within Judaism