Who knows one hundred eighty-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.
181 years after Yitzchak's birth, Yosef is released from the dungeon. (Gotta stretch those mi yodeya muscles)
If we are stretching muscles well here is another muscle stretcher that is appropriate to the time of the year we are in.
After Achashveroshes 180 day party he began another 7 day party for the people of Shushan for 7 days. This party began on the 181st day
"פני האהל" - "The front of the Tent" (Last week's parsha - Ex. 26:9)