I guess the prediction was made in his 1798 book: https://library.si.edu/digital-library/book/traite-de-mecanique-celeste https://library.si.edu/digital-librar

I guess the prediction was made in his 1798 book: https://library.si.edu/digital-library/book/traite-de-mecanique-celeste https://library.si.edu/digital-library/book/traite-de-mecani... John Adams was the second US President. 5.3 million people lived in America. Makes me want to learn more math.