What year did john dalton discover the bowling ball model?

John Dalton did not discover the Bowling ball model; rather, he is known for his atomic theory developed in the early 19th century, particularly around 1803. The bowling ball model is a metaphor often used to describe the structure of atoms, likening them to solid spheres. This concept was popularized later as part of the development of atomic models. Dalton's work laid the groundwork for understanding atomic structure, but the specific "bowling ball model" is not attributed to him directly.