Garrett, Randall. "Gentlemen: Please Note"
Divergence: 1666 CE
What if: Frustrated by government contractors, Isaac Newton changed his field of study.
Summary: A series of letters showing how Newton became disillusioned and came to write the Principia Theologica.
Published: In Astounding, October 1955; and Takeoff! (eds. Polly Freas and Kelly Freas), Donning 1979, 1986 (0915442841BUY).