The (possibly apocryphal) story goes that on this day in 1797, haberdasher John Hetherington walked onto the streets of London wearing the first top hat, which caused so much hubbub that he was arrested and fined for disturbing the peace! Plus: in January 1974, MIT professor James Henry Williams, Jr. built a 35 pound yo-yo made of two bicycle wheels, and dropped it off the side of a 21-story campus building.
On this day in 1927, the BBC tried something new for their broadcast of a rugby match between England and Wales: they partnered with Radio Times magazine to publish a diagram of a rugby pitch to help the audience follow the action. Plus: on National Hat Day, where better to be than the one and only National Hat Museum?
We provide the image, you provide the two word caption.