Shandong is one of the birthplaces of the ancient Chinese culture.The Yiyuan ape-man fossil proves there were human beings in the area some 400,000-500,000 years ago.The Beixin Culture,Dawenkou Culture and Longshan Culture found in the province prove that between 7,000 to 4,000 years ago, the Dongyi people had changed form a matrilineal to a patrilineal society and even to a class society. Some other historical finds in Shandong include Dawenkou and Longshan pottery characters,the earliest Chinese characters discovered in China,Chengziya Longshan Ancient Town, one of the earliest cities in China,the old Great Wall of the QI State, the earliest defense works in China,the tombs of Han Dynasty Kings at Luozhuang, one of China's 10 Most Remarkable Archaeological Discoveries in 2000.Besides, Shandong is one of the birthploaces of ceramics and silks.