@pickover : The symbol used today in the West to represent the number 1 traces its roots to Indians, who wrote 1 as a horizontal line. The Gupta wrote it as a curved line, and the Nagari sometimes added a small circle on left. https://t.co/ej6Ms0DMki https://t.co/GeV8JqO1PL

@pickover : The symbol used today in the West to represent the number 1 traces its roots to Indians, who wrote 1 as a horizontal line. The Gupta wrote it as a curved line, and the Nagari sometimes added a small circle on left. https://t.co/ej6Ms0DMki https://t.co/GeV8JqO1PL (via Twitter http://twitter.com/pickover/status/985851503717044224)