August 5th, 2009 at 4:40PM

The term “Mad as a hatter” was because back in the 19th century hats were made up of Mercury which would cause hatters to go “mad” (insane).

wow that sounds safe, we should start doing that again.

rattlethembones:

fuckyeahfacts:

“Mercury used to be used in the making of hats. This was known to have affected the nervous systems of hatters, causing them to tremble and appear insane. A neurotoxicologist correspondent informs me that “Mercury exposure can cause aggressiveness, mood swings, and anti-social behaviour.”

Sent by Tashi

(phrases.org.uk)

  1. feellikepartying reblogged this from ohyeahfacts
  2. evrybodyhatesleeanna reblogged this from ohyeahfacts
  3. ohhhkatelyn reblogged this from seasonalchange
  4. christineeeee reblogged this from ohyeahfacts
  5. sharkyteeth reblogged this from ohyeahfacts
  6. seasonalchange reblogged this from ohyeahfacts
  7. keepthesandinyourpocket reblogged this from ohyeahfacts
  8. itboresme reblogged this from prudenceagnes and added:
    wow that sounds safe, we should start doing that again.
  9. prudenceagnes reblogged this from ohyeahfacts
  10. yeptea reblogged this from ohyeahfacts
  11. heteroclite reblogged this from pataques
  12. jodiswonderland reblogged this from ohyeahfacts
  13. imstuckinabag reblogged this from chantellepaige and added:
    maybe i really have mercury poisoning.
  14. themoosh reblogged this from ohyeahfacts
  15. comf reblogged this from ohyeahfacts
  16. catsandtrees reblogged this from ohyeahfacts
  17. sscatterbrainn reblogged this from ohyeahfacts
  18. atearose reblogged this from ohyeahfacts
  19. stephz reblogged this from ohyeahfacts and added:
    hahaha apparently it also makes...person ask really stupid questions too.
  20. bemajinn reblogged this from ohyeahfacts
  21. reginewilldoodle reblogged this from ohyeahfacts
  22. vaniawang reblogged this from ohyeahfacts
  23. hiddensowell reblogged this from symphonysoldiers
  24. lazierthanfurniture reblogged this from ohyeahfacts
  25. sinnersarewinnersss reblogged this from ohyeahfacts
131 notes Source: ohyeahfacts
Short URL for this post: http://tmblr.co/Z4TSay9LvLc