Ben had a friend named Andrew Ellicott.
Andy's dad owned the town that Ben was born in and lived.
In those days, people died all the time.
when Andy died, the rich boy left lots of people money, land, and riches
he left Ben books on astronomy, scientific instruments, and threw in a telescope.
So Ben started studying astronomy and made mathematical calculations of the stars and constellations.
He used these calculations to correctly predict
a solar eclipse that took place
on April 14, 1789.