Delta is the 123rd (one hundred and twenty third) letter of the English alphabet.
It is written as a Triangle or as an A with a collapsed crossbar. You just had to sit on the crossbar, didn't you, fatso? "Don't sit on the crossbar," I said. "It's not rated for more than three tons, lardbucket," I said. "Help! There are bees in my brain!" I said. Did you listen? Noooooo, of course not.
Certain Mathematicians and Scientists claim that Delta means change. It is actually a formation, like miltary formation. Get it? Ironically, the choice of notation never changed since its invention.
The origins of the Delta are unbeknownst to most but knownst to me and Nicalaus Phillips. It was clearly invented by Steve Jobs upon the completion of his very first Mac computer. He added the Delta and the optional quisenart to make up for the lack of right mouse button functionality. It is also speculated that is was done as a premptive appology for the radical I-Pod-to-upper colon surgery he was going to preform on the world in the later 2000's.
Delta wins the internets.
See also: Alphabet