Long considered a lost civilization due to the lack of indigenous written records, academic and archaeological developments since the mid-20th century have revealed the Phoenicians to be a complex and influential civilization. [17] Their best known legacy is the world's oldest verified alphabet , which they transmitted across the Mediterranean world. [18] [19] The Phoenician alphabet formed the basis of the Greek alphabet , which in turn was adopted for the Latin script , the world's dominant writing system . The Phoenicians are also credited with innovations in shipbuilding, navigation, industry, agriculture, and government. Their international trade network is believed to have fostered the economic, political, and cultural foundations of Western civilization. [20]