If you happen to like our videos and have a few bucks to spare to support our efforts, check o→→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from TodayIFoundOut Why Most People Only Breathe Out of One Nostril at a Time https://youtu.be/Qoy3BWDisBM?list=PLR0XuDegDqP01NqW8KRpOy-_y2m6S2VEF What Causes Hiccups https://youtu.be/VCeMwgx5nqU?list=PLR0XuDegDqP01NqW8KRpOy-_y2m6S2VEF In this video: Although the phrase “mad as a hatter” is, and will likely long be, associated with Charles Dodgson’s (a.k.a. Lewis Carroll’s) 1865 novel, Alice in Wonderland, contrary to popular belief, Carroll neither coined the phrase nor did he use it in his works. (The Hatter is referred to as “mad”, along with his little tea party, but he is never explicitly called “Mad Hatter” in Carroll’s works nor is the phrase “mad as a hatter” used.) So where did the phrase “mad as a hatter” actually come from? Want the text version?: http://www.todayifoundout.com/index.php/2016/04/crazy-people-called-mad-hatter/ Sources: http://oem.bmj.com/content/50/2/97.2 https://www.cas.org/news/insights/science-connections/mad-hatter http://www.snopes.com/language/phrases/hatter.asp http://www.phrases.org.uk/meanings/mad-as-a-hatter.html http://emedicine.medscape.com/article/1175560-clinical https://books.google.co.uk/books?id=nCKxSwUlX-AC&pg=PA104&lpg=PA104&dq=Adolph+Kussmaul+mercury+poisoning&source=bl&ots=amR2bYNmM1&sig=tV70RnEjO38tjh4rnYo9kFWJOcc&hl=en&sa=X&ved=0ahUKEwit4_yx5PrKAhXGnnIKHbskBjEQ6AEIKjAC#v=onepage&q=Adolph%20Kussmaul%20mercury%20poisoning&f=false https://books.google.co.uk/books?id=aNLk6ArybNoC&pg=PA81&lpg=PA81&dq=mad+synonym+venomous&source=bl&ots=Q8rRpnWRDT&sig=6rvk1DEy9ODP8o6UGXAuSoi5Xic&hl=en&sa=X&ved=0ahUKEwjMuu6v6_rKAhVL8HIKHcN1BBgQ6AEIUjAJ#v=onepage&q=mad%20synonym%20venomous&f=false http://co