[Publius6961]

In all fairness, back in the stone ages we used to center on mechanical typewriters all the time. It's just that the typist did the math rather than having the computer figure it out. :-)

Wrong.
There might have been an occasional case when the lines centered perfectly, but it was a function of the number of letters per line. With three lines, this is almost impossible to be mathematically perfect on a typewriter. I know. I used to do that. "Visually" centered, but not mathematically.

[2nd amendment mama]

Exactly. Remember going to the center and then backspacing to try and get everything centered? And, if you had an odd number of letters it was never perfect! Now I'm showing my age...LOL