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From Simple English Wikipedia, the free encyclopedia

Sampi or Disigma is a mysterious Greek symbol. Its meaning is still debated today. Some believe it to be a replacement of 'san'. Before that, it was a letter that was used in the Greek alphabet in a few Greek cities in the 5th century BC. At that time, it looked like Greek Sampi Ionian.svg or Greek Sampi Pamphylian.svg. It was probably pronounced like "ts" or "tch" in the dialect of those cities. Over time, it was changed from Ͳ to Greek uncial Sampi.svg or Greek uncial Sampi 02.svg and at last to Sampi.svg. Eventually, the letter came out of use, while it was still used to denote "900" in the system of Greek numerals.