By at least a few centuries. I found this tidbit on candlestick charts in Wikipedia: http://en.wikipedia.org/wiki/Homma_Munehisa http://en.wikipedia.org/wiki/Ho

By at least a few centuries. I found this tidbit on candlestick charts in Wikipedia: http://en.wikipedia.org/wiki/Homma_Munehisa http://en.wikipedia.org/wiki/Homma_Munehisa It turns out that sort of chart was invented in the 18th century.