Our world is governed by technology, which is itself governed by two numbers that make all languages ​​work: 0 and 1, thanks to the binary language present in any computer system. Two figures on which all the technologies used by humans have been based for centuries. In this episode discover where the 1 comes from. Its deep origin with the need to count in prehistory. Then the appearance of the notion of number with the calculations with the Sumerians.. Finally the creation of the symbol "1" which took place... not among the Arabs as many believe... but in India!