Gittin 36 - For the Benefit of Society
Witnesses sign on a Get for the benefit of society. They add their names to be found later in case of trouble.
Hillel established Prosbul, which allows debt collection even after the 7th year (Shmita). People were refraining from loans close to Shmita; thus, Prosbul benefits society.
Art: Gerrit Adriaensz Berckheyde - A Notary in his Office
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