A

[Matqx]

The letter A comes from comes from an ancient Egyptian hieroglyph or pictogram depicting an ox's head. Interestingly, the original image was reminiscent of the modern letter K. The letter originally served as a glottal stop (a stop consonant) in the Phoenician language such as a t or p in the middle of a word. 

Right, so that was copied and pasted but here's something I guarantee 99.9% of you didn't know about the letter A, it's the fact that it's the first letter of the alphabet. Comment if you disagree, and comment if you agree.