Warring States period

The Warring States period in Chinese history (c. 475 – 221 BC) was an important time near the end of the Zhou dynasty. During this time, many states fought each other for power. This period started after the Spring and Autumn period and ended when the state of Qin won all the wars by 221 BC, starting the Qin dynasty, China's first big empire.

Many big changes happened during the Warring States period. People made new ideas in philosophy, trading, farming, art, and everyday life. Even though the king of Zhou was still the official ruler, he didn't really control anything anymore. The name "Warring States period" comes from a book called the Record of the Warring States, written later in the Han dynasty. This time is famous because fighting between states became much bigger and more common.

Geography

In 450 BC, eight large states existed. Yan was in the north and Yue was in the east. The "Big Six" states were Qi, Chu, Jin, and the "Three Jins" — Wei, Han, and Zhao. There were also many smaller areas that joined the larger states over time.

At the start of the Warring States period, there were seven strong states: Qin in the west, Qi in the east, Chu in the south, Yan in the north, and the "Three Jins" of Wei, Han, and Zhao in the center.

Periodisation

See also: Timeline of the Warring States and the Qin dynasty

Historians have different ideas about how long the Warring States period lasted. Some think it started in 481 BC, when the records of the state of Lu ended, and ended in 403 BC, when the states of Han, Wei, and Zhao were officially recognized by the Zhou dynasty.

However, many scholars believe the period began in 475 BC, after the Spring and Autumn period, and ended in 221 BC when the Qin dynasty was established. This later view is more commonly accepted.

History

The Eastern Zhou dynasty began to weaken around the 5th century BC. As their power faded, seven major states formed: Chu, Han, Qin, Wei, Yan, Qi, and Zhao. These states often fought for control and independence, leading to many wars between 535 and 286 BC. The state that won these wars would rule all of China.

The Zhou dynasty’s influence shrank after 771 BC when the capital moved to Luoyang. The Warring States period saw some states growing stronger than others. Rulers used the idea of the Mandate of Heaven to justify taking over other states.

In 453 BC, the state of Jin split into three new states: Han, Wei, and Zhao. This event marks the start of the Warring States period. Around this time, a member of the Zhou family still existed, but had little real power.

Qin became very powerful under reforms by Shang Yang, who changed laws, taxes, and land use. By 221 BC, Qin had conquered all other states and united China under one ruler, ending the Warring States period.

Military theory and practice

Main article: Military of the Warring States

The Warring States period was a time when leaders needed new ideas to help with wars and ruling their lands. Many smart people traveled between different states, offering their ideas to kings and leaders. These leaders were eager for good advice to make their armies stronger, but the advisors had to be careful — if their plans failed, they could face terrible punishment. These travelers cared less about loyalty and often helped more than one ruler at a time.

Increasing scale of warfare

Fighting during this time became much bigger. Early on, soldiers used chariots, but later they switched to large groups of foot soldiers with new weapons like swords and crossbows. This change led to battles that could last for months or even years. The number of soldiers in armies grew very large, with some states having hundreds of thousands of fighters. Even though some numbers might be too high, it is clear that wars were intense and caused a lot of suffering, which helped shape China’s later wish for peace and unity.

Military developments

This period brought many new ideas in warfare. Soldiers began using iron for weapons, which made them stronger than bronze. States built big walls, like parts of the Great Wall of China, to protect themselves. New weapons such as halberds, crossbows, and better bows were developed. Armies grew huge, needing good organization to keep everyone supplied and trained. Cavalry, or soldiers riding horses, also appeared for the first time in China around 307 BC, though chariots were still important.

Military thought

The Warring States period was also a time for great thinking about war. Four important books on military strategy were written then, including The Art of War, which is still famous today. These books shared ideas about how to plan battles and lead armies. During this time, bigger states became more aggressive, and smaller ones, like Lu, were often taken over by the stronger ones, such as Qi.

Culture and society

The Warring States period brought many changes in daily life and ideas. People traded goods like gold, copper, pottery, and weapons more often. This time also saw big changes in thinking and learning.

Many new ways of thinking grew up because of all the fighting and the need for better ways to run countries. These ideas later became known as the Hundred Schools of Thought. Some of the most famous included Mohism, started by Mozi, who taught that leaders should be fair and kind. Confucianism, taught by thinkers like Mencius and Xunzi, believed that good moral rules could help peaceful rule. Legalism, created by Shang Yang, focused on strict laws and clear rules for everyone. Taoism, from Laozi and Zhuangzi, suggested that people should stay simple and natural. These ideas shaped how people thought about life and government.

This period also saw advances in math and writing. Bamboo pieces from around 305 BC show early math tables, and famous books like the Zuo Commentary were written, collecting older stories and teachings.

Economic developments

During the Warring States period, there was a big need for weapons, which helped improve how people worked with metals and led to the use of iron. Artists became very skilled and created beautiful pieces using jade and lacquer. Better farming methods and tools made more food, which helped everyone have enough to eat and supplied the army with what it needed.

Markets grew and trade between different regions became very common. The city of Linzi in Qi was very busy, with many people coming to buy things like salt, silk, iron, and dried fish. It was also a fun place with music, games, and other activities. The book called the Guanzi talked about important ideas for managing trade and prices, helping people understand how to handle different kinds of goods.