Marie Crous circa 1641Art by Mavia Comic (tumblr)Although the name Marie Crous is largely unknown, M
Marie Crous circa 1641Art by Mavia Comic (tumblr)Although the name Marie Crous is largely unknown, Marie’s work is familiar to every schoolchild. She invented the decimal system. Almost nothing is known of Marie’s life, but her work on the decimal system was published by 1641. -- source link
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