Tell us about the events that if we don t, we will change human history ?

In 3500 B.C., human beings invented the wheel, and some wheels at that time were still made of stone, which was a large stone plate. Since the wheel, human production and life have changed a lot, saving physical strength and improving work efficiency. The use of wheels is becoming more and more common in modern society, and it is hard to imagine what we humans would do without wheels.

The invention of the light bulb, I think. Without the invention of the light bulb, human night life would be very monotonous, and then there would be no rich nightlife now.

In 1928, the British bacteriologist Fleming first discovered the world's first antibiotic, penicillin. The invention of penicillin dramatically reduced the death rate on the battlefield, and many soldiers had died from wound infections before that. The creation of antibiotics is also historically significant.

Papermaking, printing, China's four major inventions have indelible significance to the development of the world, it can be said that without these four inventions, human history would have changed.

The invention of **, the invention of ** has shortened the distance between people, and the spread of information is more rapid, without which I dare not imagine what life will be like in the future.

The Sumerians of the Two Rivers Valley invented and began to use nails, but those nails were made of clay. Nails seem to be very simple, but in ancient times, they were very useful, and they were inseparable from building houses, production tools, vehicles, ships, weapons, etc.

I think it was the invention of gunpowder, which changed the history of human warfare and made mankind move from the age of cold weapons to the age of hot weapons, which is of great significance.

If the Russian Revolution of 1905 had succeeded, Germany would not have fought on two fronts in World War I, and Germany would have won the First World War and history would have been rewritten.

If there is no Anshi Rebellion... I'm Datang, alas...

If Wu Sangui had not met a house slave when he returned to Beijing to join Li Zicheng, he would have been recruited by Li Zicheng, and Wu Sangui would have defected to Dolgon, and Li Zicheng fought in Shanhaiguan, losing both sides and being picked by the Qing soldiers.

If people live on planets next to Sirius.

If there is no Yuan Longping, the world's food will be in a hurry.

If the forest apes hadn't evolved...emmm

History has no ifs, only results.

If China had not closed itself to the outside world, China would probably have been on top of the world.