Why did Thomas F Ryan invented bowling?

Answer 1

Bowling wasn't invented, so much as it evolved.

People have been throwing rocks at targets ever since we discovered we had hands. Rock-throwing was almost certainly a primitive early form of hunting, as well as a means of defending ourselves against larger predators.

Larger stones would've been thrown underhanded, softball style, for greater power. Still-larger stones might've been rolled along the ground, in an early form of target practice. Eventually, our ancestors discovered that rounder stones rolled better, and that knocking over rocks was fun in and of itself.

From those humble beginnings, the sport we know today as bowling most likely began. But this is all speculation; nobody knows for sure.

Answer 2

because his customers thought the bowling ball was too heavy, so his father carved a smaller pin in place of the old ones.