Who knows one hundred sixty-one?
Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:
Upvote all interesting answers.
Accept the best answer.
Go on to the next number.
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Sign up to join this communityOn average it takes 161 Jewish months to become Bar Mitzva. 13 x 12 = 156 + 5 extra Adars.