Modern calculus was developed in 17th-century Europe by Isaac Newton and Gottfried Wilhelm Leibniz (independently of each other, first publishing around the same time) but elements of it appeared in ancient Greece, then in China and the Middle East, and still later again in medieval Europe and in India.

What is the origin in calculus?

It is the point (0,0), where the x-axis and y-axis intercept. The origin is used to determine the coordinates for every other point on the graph.

Who actually invented calculus?

Sir Isaac Newton was a mathematician and scientist, and he was the first person who is credited with developing calculus. It is is an incremental development, as many other mathematicians had part of the idea.