Pinyin letters can be displayed by petals, stones, candles, ropes, branches or gestures, and the letters used in Pinyin letters are twenty-six Latin letters used for phonetic notation of Chinese characters in the Chinese Pinyin Scheme; The first set of pinyin letters in the world was created by Phoenicians. Because of Phoenicia's developed navigation and international commercial trade, on the one hand, it is economically necessary to prepare commercial documents in time and need a universally understandable, simple and convenient writing system; On the other hand, Phoenicia engaged in international business activities, and was widely exposed to and familiar with the characters of ancient countries, which made it possible for Phoenicia to create new letters. Therefore, the Phoenicians used Egyptian hieroglyphs and Babylonian modular characters to create the world's first set of pinyin letters; Both the ancient Greek alphabet and the lamia alphabet originated from the Phoenician alphabet, and the Greek alphabet later developed into Latin and Slavic alphabet. Lamia alphabet later developed into Hindi, Arabic, Armenian, Uyghur and other letters. It can be said that the Phoenician alphabet is the same family of letters of all nationalities in the world today.