Did jewish people believe that jesus christ was the son of god?

Majority, no

Explanation:

Historically, many believed that Jesus was a prophet of GOD, or at best a teacher (of the law). Many Jews living during the age did not believe that the coming of Christ would occur while they were alive, and they essentially betrayed Jesus to be crucified. Of the few that believed, many were still doubtful, and needed ground and reasons to continue in their faith. However, there were instances of the belief of Jewish People, but it is rarely. Many followers were actually those who were not of higher class in the hierarchy of the class structure made during the Roman rule. Towards the end of Jesus's death, we see that most Jews regret eliminating him, but in a sense still did not believe.

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No they didn't believe he was the son of God, thats the reason why they crucified him.

answer; i believe the answer is (mesopotamia); modern day