Portrait of Blaise Pascal (1623-1662) a French mathematician, physicist, inventor, writer and Catholic theologian. Dated 19th century Stock Photo - Alamy
Biography of Blaise Pascal, Inventor of the Calculator
Pascal, Blaise | Internet Encyclopedia of Philosophy
What were the famous Blaise Pascal inventions? | HowStuffWorks
Blaise Pascal (June 9, 1623 — August 19, 1662), France mathematician, philosopher, physicist, scientist, theologian | World Biographical Encyclopedia
Blaise Pascal - Wikipedia
Portrait of Blaise Pascal with his calculator - Stock Image - H416/0207 - Science Photo Library