Blaise Pascal 1623-1662 Blaise Pascal (pahs-KAHL) was born on June 19, 1623, in Clermont-Ferrand, France. Pascal was often sick as a child and had many health problems. His father was a lawyer and a very talented mathematician as well. Pascal’s mother died when he was only three years old, so their father raised him and his two sisters. Pascal made many contributions to mathematics as well as religion and philosophy. He invented the first adding machine or calculator. It used gears to add and subtract. They were so expensive that only a few people could afford them. Others saw his invention of the calculator as so important to mathematics that a computer language was named after him in the early 1970’s. He also invented the wheelbarrow and many ideas about probability. Pascal, like all great mathematicians, was fascinated by patterns. He spent a lot of time exploring the “arithmetic triangle” handed down by the Chinese. He discovered many new properties and solved many problems using this triangle. It became known as “Pascal’s Triangle.”