Mad Hatter Day - October 6th
October 6th is Mad Hatter Day!
The holiday dates back to 1986 where it was brainstormed by a group of people that just wanted to act silly for one day. The Mad Hatter is a fictional character from Alice in Wonderland where he is seen wearing a hat that has a slip of paper with the "10/6" on it.
For more info head over to Holiday Insights.