Without looking it up, when did John Moody write his first Moody’s Manual?
1900
Good guess.
I don’t want to look it up, but I remember Buffett saying that part of his first job was flipping through the Moody’s manual by hand, to find net-nets when he worked for Ben Graham, so it’s been around since, let’s see…like at least 1950. Tack on another 30 years, let’s say, and I’ll call it 1920.