John Wallis was an English clergyman and mathematician, who is given partial credit for the development of infinitesimal calculus.
John Wallis
Opera mathematica, 1699
Calculus is the mathematical study of continuous change, in the same way that geometry is the study of shape, and algebra is the study of generalizations of arithmetic operations.
Gottfried Wilhelm Leibniz was the first to state clearly the rules of calculus.
Isaac Newton developed the use of calculus in his laws of motion and universal gravitation.
Maria Gaetana Agnesi
The logarithmic spiral of the Nautilus shell is a classical image used to depict the growth and change related to calculus.