There are as few as one but as many as two errors in today's offering. I hereby offer an official Not Remotely A Prize to the first person to identify both through the most vaunted medium of electronic mail.

The conflict between Newton and Leibniz over calculus is the stuff of legend. It seems that they were both quite generally okay with each other until their respective underlings started creating a dire rivalry out of thin air. The difference was that Leibniz's people waged their war by educating a continent while Newton's people rested content with Being Very British.

This, and the fact that Leibniz's notation was just objectively better, is the reason for the continued use of Leibniz-style notation to this very day, while Newton's charming dots continue to rub elbows with the Luminiferous Aether and Crystal Pepsi in the rubbish bin of forgotten notions.

Meanwhile, let's not forget why we're in this graveyard:
"(De Sade's) Justine is the most abominable book ever engendered by the most depraved imagination." - Napoleon Bonaparte

- Count Dolby von Luckner

Errors, huh? Newton is somewhat incorrect in his statements of time-travel causality (at least how they apply to him and Frederick), but I'll let him slide since he doesn't know all the rules yet.

However, it would be a logical error on the reader's part to assume that I have a firm grasp on all the rules.