【知识梳理】一、百家争鸣的春秋战国文化春秋战国时期是我国由奴隶制向封建制转变的社会大变革时期。经济的发展、社会的变革,成为春秋战国时期科技文化大发展的前提和条件。铁器的使用和推广是这个时期生产力发展的重要标志。生产力的空前发展,促成科学技术的迅速发展,在天文 [Knowledge combing] I. The Spring and Autumn and Warring States Culture of One Hundred Schools of Warring States During the Spring and Autumn and Warring States Period, China was a period of great changes in society from the transition from slavery to feudalism. Economic development and social changes have become the prerequisites and conditions for the development of science and technology in the Spring and Autumn and Warring States period. The use and promotion of ironware is an important symbol of the development of productivity during this period. Unprecedented development of productivity and the rapid development of science and technology in astronomy