In 2200 AD, the earth ended its disputes and established an earth government. There was only one China in the world.
In 2700 AD, the Earth government began large-scale interstellar immigration.
In 3000 AD, the Earth government discovered the five major civilizations in the universe, Yaqin, Montenegro, Chika, Akali and Roti.
In AD 3300, a war broke out among the six major civilizations in the universe, and a four-hundred-year battle for civilizations in the universe began.
In 3700 AD, the Earth government won the final victory.
In 4100 AD, the Earth Government Army's 38th Fleet, the USS Discovery, discovered a mysterious new secret in the Ring Galaxy, and then the entire Discovery was destroyed.
In 4300 AD, the Fourth Civilization launched a war, and the six major civilizations in the universe united to resist the invasion of the Fourth Civilization.
In 4500 AD, in order to preserve the remaining power from being wiped out by the fourth civilization, the Earth government launched the "Sparking Fire" project to send millions of Earth's residents into incubators and freeze them underground for long-lasting sleep, in the hope that one day the last humans on Earth could be preserved.
In 4515 AD, Xu Ruonian was a soldier serving on the battleship "Kunlun".
Send it into the cabin and launch it back to the earth. The coordinates are 116°20′ east longitude and 39°56 north latitude.
Sleep, sleep.
Ten thousand years?
Intention: Maybe there is no time travel, but there are humans who survived the previous generation of advanced civilization!