Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the cradle of Chinese civilization. With thousands of years of continuous history, China is one of the world's oldest civilizations. The written history of China can be found as early as the Shang Dynasty (c. 1600 – 1046 BC) although ancient historical texts such as the Records of the Grand Historian (ca. 100 BC) and Bamboo Annals say that a Xia Dynasty existed before the Shang. Much of Chinese culture, literature and philosophy further developed during the Zhou Dynasty (1045 – 256 BC).