Who invented binary number system?

Answer 1

The modern version of binary numbers was discovered by the German mathematician Gottfried Leibniz in 1679. He credits the invention of binary numbers to Fu Xi, who he claims invented the "I Ching" binary system in China 4,000 years ago. Modern historians believe that the "I Ching", which contains the "bagua" binary hexagrams, dates closer to the 9th century BC. Binary numbers were also used elsewhere in the world outside China and Germany. In Polynesia, indigenous groups used a binary decimal system as early as 1450 AD. Pingala in India used a binary system in 200 BC for prosody. A similar system was used in sub-saharan Africa as part of their numerology system (known as "geomancy"). The sort of binary we use today however was put together by a fellow named "Francis Bacon" , and another chap named "Gottfried Leibniz" in the 1600s. The full power of Binary however was finally unlocked by a man named "George Boole" in the 1800s when he invented Boolean algebra which brought all the ideas together.