The reason is that this bomb killed the Mongolian Khan who came to attack the Song Dynasty. Just like the TV series "The Condor Heroes", Khan was killed by the enemy and the Mongolian army fell into a panic. Even more exaggerated, even the Mongolian army that was attacking India withdrew because of Khan's death, in order to come back and fight for Khan's throne. Of course, the Song Dynasty was also saved from extinction, which lasted for decades with this bomb, and then indirectly saved the world.

Therefore, the historical trend is often so magical. A small bomb can change the world. Of course, this is also due to Mongo's underestimation. If Mongo is not bold enough about his art, let his men build him a high platform to watch the battle. Soldiers in the Song Dynasty may not be able to find his position, and he certainly won't die.

It is possible that, like his younger brother who fought in West Asia, he made great achievements and won the whole Song Dynasty by surprise. And the Indian army can continue to attack India without coming back, but the fact is cruel, and a small butterfly effect may trigger a big storm.

But then again, the Mongolian army in Genghis Khan's time still brought great disasters and destruction to the world. For example, after three Western Expeditions, the population of Europe decreased by more than half, especially when attacking West Asia, 1500 people were slaughtered. This massacre is unprecedented. Of course, under such a brave warrior, the Yuan Dynasty also laid a great territory and became the largest territory of China's ancient feudal society.