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Who knows three hundred twelve?

?שנים עשר ושלוש מאות - מי יודע

In the spirit of the song "Echad - mi yodeya", please post interesting and significant Jewish facts about the number 312.

Don't dwell on lazy gematria; it's bad to get caught up in something so dry.

Check out for the previous three hundred eleven entries in this ongoing series.

Please include sources for your information wherever possible, as with all other answers on this site.

  • 2
    It's more embarrassing to get caught up in something so dry. – Double AA Jan 17 '13 at 0:56
  • @DoubleAA Still worse if you get arrested and taken captive for doing so. – Fred Jan 17 '13 at 2:57
  • @Fred "caught up," even – Isaac Moses Jan 17 '13 at 4:52
  • @IsaacMoses Ah, I didn't notice that. – Fred Jan 17 '13 at 5:20