As I explain below, a tripod is a jar.
Bronzes were used in southern Iran, Turkey and Mesopotamia from 4000 to 3000 BC, and in Europe, India and Egypt from 3000 to 2000 BC. In Africa except Egypt and North Africa, bronze was used later, about no later than 65438 BC+0000 ~ early AD. Copper smelting centers did not appear in the United States until nearly 1 1 century. The bronze culture in China originated in the Yellow River valley and began in the 2nd/kloc-0th century BC.
Ding was originally a cauldron for cooking, which was developed from a kettle. The kettle is a cauldron without feet. When in use, put three stones under the kettle to make a fire. Later, people put three feet and a kettle together to form a tripod.
In the Bronze Age, several important bronze casting industrial zones were formed in the world, which became the center of the formation of ancient human civilization. In some areas with developed ancient culture, the bronze age was adapted to the social form of slavery, such as Aegean Sea, Egypt, Mesopotamia, India, China and other countries and regions. At this time, slave countries flourished. However, there are also some areas that have directly transitioned to the Iron Age without going through the Bronze Age. In the Bronze Age, writing appeared in civilized areas.
China
China's bronze culture originated in the Yellow River valley, starting from 2 1 century BC and ending in the 5th century BC, which is roughly equivalent to the Xia, Shang, Western Zhou and Spring and Autumn Period recorded in the literature, and has experienced a history of about 1500 years. This is always related to the emergence, development and decline of China's slave country. Some scholars divide the bronze age from Shang and Zhou Dynasties to Warring States Period in China into four stages: heyday, decline, revival and decline. Some scholars also divide this period into five stages: pre-Yin Shang, post-Yin Shang, western circulation, pre-Eastern Zhou and post-Eastern Friday. China bronze culture has its own characteristics and styles, which can be divided into different regional types. China entered the Bronze Age and generally experienced several different stages of development.