Yes and No. Judaism did have numerous branching off points, but these points did not come immediately after its founding. They took centuries to develop.
Answer:
Not really. What happened was that various splinter-groups have broken away from Judaism and have either disappeared or become something entirely different. These include the ancient idolaters among the Israelites, the Hellenizers, Essenes, Karaites, and others.
Israel
Jerusalem
Rabbis and cantors
Of course not.
The is no such thing as a "judaism".
Judaism does not have a centralized leadership.
Belief in God and in the Torah.
Jews worship in synagogues.
No, Jews worship in synagogues.
The lord God or Yahweh is the diety in Judaism.
Judaism's primary language is Hebrew
Only One God.