TIL “&” used to be the 27th letter of the alphabet. The name ampersand comes from the fact that early 1800s school children reciting their ABCs concluded with "&" by saying “X,
Twitter 上的Ben Frain:"TIL: The ampersand is a ligature of 'et' meaning 'and' in Latin! via the excellent https://t.co/i2nn9zQgQ5 newsletter from @matejlatin 👍 https://t.co/9VnF6bNcOZ" / Twitter