This manuscript contains one of the earliest examples of the symbol that was later used for zero.
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Radiocarbon dating revealed that it dates from as early as the third or fourth century—about five centuries older than previously thought. The manuscript was discovered buried in a field in 1881, in what is now a region of Pakistan. Zero is represented as a dot—seen here on the bottom line. This dot eventually evolved to have a hollow center and became the symbol we use today.
Read more about the manuscript’s discovery: http://news.nationalgeographic.com/2017/09/origin-zero-bakhshali-manuscript-video-spd/
Ancient Text Reveals New Clues to the Origin of Zero | National Geographic
https://youtu.be/eSUBqodpuc0
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