What influence or contribution has four great inventions of ancient china made to mankind?

Four great inventions of ancient china-papermaking, printing, gunpowder and compass. They are great scientific and technological achievements that the Chinese nation has dedicated to the world and have had a great impact on the historical process of the world.

(1) The invention of papermaking: Books as cultural carriers became cheap and easy to arrange and preserve, which made great contributions to the spread of culture, provided economical and convenient writing materials for human beings and set off a revolution in human writing carriers.

The appearance of printing made it possible to copy a large number of books, accelerated the spread of culture, and changed the situation that only the upper class in Europe could read.

(3) The invention of compass: Sina's invention enables human beings to accurately identify the direction when entering a strange environment, which often saves lives. It provided important conditions for European navigators to sail around the world and discover America, and promoted the development of world trade.

(4) The invention of gunpowder weapons: changed the way of war, helped the European bourgeoisie to destroy feudal fortresses, accelerated the historical process of Europe, and enabled mankind to truly gain the power to transform nature. At that time, its role was mainly in the war. Frankly speaking, this invention has violated the traditional morality of China and brought profound disasters to China, but as a weapon for human beings to transform nature, it still has its significance.