Answer:
Economically: In the Spring and Autumn Period, the use of iron and the spread of ox farming marked a significant increase in social productivity. The feudal economy of our country has been further developed, especially the achievements of the north are more outstanding. The leap in productive forces has brought about a revolution in the relations of production. During the Spring and Autumn Period, the system of well fields (public fields) was gradually replaced by the private ownership of feudal land, and finally established through the reform laws of various countries.
Politically: During the Spring and Autumn and the Warring States Period, the feudal hegemony war destroyed the old order of slavery and brought disaster and suffering to the people. But the result of the war accelerated the process of unification, promoted ethnic integration and accelerated the pace of change. With the strength of the new landlord class, they launched the reform movement in each vassal state, and the new feudal system was finally established. The state of Qin, which underwent the most thorough reform, became the strongest among the vassal states and later developed into the core force of unification.
Culture: Culture is the reflection of politics and economy in a certain period. During the Spring and Autumn Period, the development of economy promoted the progress of science and technology. The social change has contributed to the unprecedented activity of thought and the prosperity of literature and art.
During the Spring and Autumn Period and the Warring States Period, the old system and the old ruling order were destroyed, the new system and the new ruling order were established, and the new class forces were growing. Hidden in this process and the root of this social change is the revolution of productive forces, which is characterized by iron. The development of productive forces eventually led to the revolution of various countries and the establishment of feudalism, which also led to the prosperity of ideology and culture.
