The composition of planetary immigrants

In 3000 AD, the earth was overcrowded, the sewage overflowed, the air was turbid, and there was no sunshine all day, so human beings could no longer stay on the earth. At this time, space technology was very developed, so people on earth immigrated to other planets. Finally, one day, there is no one on the earth.

At this time, the rulers of Planet X and Planet Y took a fancy to the earth and both wanted to keep it for themselves, so the rulers of the two planets launched a life-and-death struggle on the earth. They used tanks, cannons, laser cannons and atomic bombs ... The war lasted for 30 years and was very dark. Suddenly one day, the earth's crust was smashed, magma gushed out from the earth's crust, and the rulers of the two planets were washed away, as were the animals and plants on the earth. The earth has become a big globe, and there is nothing left.

After thousands of years of wandering in space, human beings who immigrated from the earth realized that only the earth is their real home, so they returned to the earth. However, when they returned to the earth, they found that the earth had been devastated, so they sent the cities built on other planets back to the earth with time conveyors and transformed the earth with the most advanced technology. Suddenly, the earth changed. With trees and flowers, people lived happily. From now on, there will be no more wars and pollution on the earth. The previous generation told the next generation the story of the earth and educated them to love the earth and live in peace. Thus, mankind bid farewell to the painful past forever and lived a happy life.