Fundamental Counting Principle.

The fundamental counting principle evolved from combinatorics dating back to 300 AD. Combinatorics is the understanding of how a particular set of objects can be counted and then joined to make various combinations. As the understanding of combinatorics developed over the years, it went from one-to-one corresponding counting for making combinations, to more advanced algebraic expression methods relying on variables and multiplicity to determine the maximum set of possible outcomes. Another modern expression for determining the maximum number of outcomes in a given set of variables is called probability.