Alphabet writing systems change over time. The Greeks borrowed the Phoenician alphabet of 22 letters but wrote the symbols differently. Also, the Greeks added two letters. Since the time of ancient Greece, their alphabet has evolved into the one used in the Modern English today.
The Greeks picked up the Phoenician alphabet between 900 and 800 B.C. They changed some letters to suit their language. The Greek alphabet later evolved into our own alphabet of 26 letters. The Greeks also learned about coins from trading with other peoples. Coins were invented about 650 B.C. in Anatolia. Most parts of Greece were making their own coins by 500 B.C. Eventually, the Greeks also developed new forms of literature and government.