Aa: About 3,000 years ago, in the Phoenician alphabet, the letter A was pronounced aleph, which looked like the letter V, with a bar in the middle, representing a bull's head or horn. Later the Greeks wrote backwards. For ancient Phoenicians, cattle meant wealth and were indispensable for food, clothing and farming.

Extended data:

Pinyin letters refer to the letters used in pinyin, and also refer to the 26 Latin letters used for phonetic notation of Chinese characters in the Chinese Pinyin Scheme. Pinyin letters were invented by the Egyptians.

Before there were pinyin letters, Egyptians drew whatever they saw, so they created many pictures and words. In order to facilitate writing, they chose more than twenty simple symbols instead of words.