Calculus was assembled from previously existing but not understood to be related parts. Fermat and Descartes laid huge amounts of the ground work building off of what the Greek's had discovered in infinitesimals 1600 years earlier.
The initial version of Calculus would be mostly unrecognizable to a mathematics student today.
Kind of like calculus being discovered simultaneously by two different people.
Some things are just true.
Calculus was assembled from previously existing but not understood to be related parts. Fermat and Descartes laid huge amounts of the ground work building off of what the Greek's had discovered in infinitesimals 1600 years earlier.
The initial version of Calculus would be mostly unrecognizable to a mathematics student today.