The four great inventions of ancient China promoted the development of society. What is the timing of these four great inventions?

Compass: Warring States Period

Compass is the result of China ancient working people's understanding of magnet magnetism in long-term practice. As one of four great inventions of ancient china, its invention has played an inestimable role in the development of human science, technology and civilization. In ancient China, the compass was first used for rituals, etiquette, military affairs and divination, and to determine the orientation when looking at geomantic omen.

2. Papermaking: Western Han Dynasty (improved in Eastern Han Dynasty)

In the first year of Yuan Xing in the Eastern Han Dynasty (105), Cai Lun improved papermaking. He made paper from bark, hemp head, cloth, fishing net and other raw materials through crushing, mashing, frying and baking, which is the origin of modern paper. This kind of paper is easy to find, cheap and has improved its quality, so it is gradually widely used. In order to commemorate Cai Lun's achievements, later generations called this kind of paper "Cai Hou Paper".

3. Gunpowder: Eastern Jin Dynasty

China was the first country to invent gunpowder. In Sui Dynasty, the ternary system of saltpeter, sulfur and charcoal was born. Gunpowder was invented by ancient alchemists. From the Warring States Period to the early Han Dynasty, emperors and nobles indulged in the fantasy of immortality, which drove some alchemists and Taoists to refine the "elixir" and gradually invented the formula of gunpowder during the refining process.

4. Printing (sculpture): Tang Dynasty

Engraving printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty. 1900, a beautifully printed Diamond Sutra was found in the Thousand Buddha Cave in Dunhuang, with the words "April 15th, 9th year of Xian Tong (AD 868)" at the end. This is the earliest printed matter with a definite date in the world.

Expand the historical significance of data?

1. the invention of papermaking: it provided economical and convenient writing materials for human beings and set off a revolution in human writing carriers;

2. The invention of block printing greatly promoted the spread of culture;

3. The invention of the compass: it provided conditions for the navigation activities of European navigators;

4. Invention of gunpowder weapons: The use of gunpowder weapons changed the way of fighting, helped the European bourgeoisie destroy feudal fortresses and accelerated the historical process in Europe.

reference data

Baidu Encyclopedia-Four Inventions