If you are a lover of the history of mathematics, then I am sure that you will be interested to read the translation of the actual Fermat-Pascal correspondence. In the letters the two mathematicians discussed solutions to gambling problems. These discussions eventually led to understanding of the modern concepts of probability.
Blaise Pascal was a known mathematician, physicist, philospher and inventor in his time. He was also famous for inventing the pascal’s calculator, the first mechanical calculator that could perform automatic addition, subtraction, multiplication and division. Pierre Fermat, on the other hand, was an amateur mathematician (he was a lawyer by profession) who made significant contributions in number theory, analytic geometry, and probability. One of his famous conjectures was the Fermat’s Last Theorem.