In 3918 AD, Dr. Max Payne, who was known as the "father of the theory of dimensional space" and was called "crazy" at the time, verified the establishment of the theory of "dimensional parallel" and proposed the existence of "parallel space", but it was not recognized by the vast majority of people at that time.

It was not until fifty-five years later, under the efforts of Marx, Dr. Payne's successor, that the first parallel space was discovered in AD 3973, and the whole human race began to gradually realize the feasibility of the "dimensional space theory" and the infinite expansion of the whole human space.

Until the 200th anniversary of the "dimensional space theory" proposed by Marx and Dr. Payne, after countless explorations, humans have found a total of six different dimensional Spaces with life, in addition to the human humanism has always been named the first space in addition to their own location, human beings have been living in the first space, the other six are called the second space, the third space, the fourth space in the order of discovering time sooner or later. ........................ The seventh space.

The second space, strictly speaking, is not a complete space. The Sigma Naama Institute for Spacetime Research, which discovered it, did not initially think it was a dimensional space. The reason it is considered a fault between two Spaces is that the second space is a plane space. It is not like the first space of human existence, which is composed of burning stars, planetary satellites around stars, and interstellar meteorite nebulae, etc., and then a huge galaxy constitutes the universe. But only before and after, left and right, not up and down such a transcendent human existence. Although the second space is actually hundreds of millions of kilometers away from the nearest one. But compared to millions of light years can not detect the quartet can only be ignored.

The reason why it is finally considered as a dimension is because it is too similar to the environment on Earth, the vast and endless earth, stretching straight to forever, to infinity. The same mountains and lakes, the same changes, although it is very different from the earth, there is not the sun, the moon, and the stars in the sky, but a brilliant halo of energy like a rainbow like a diamond can shine on the earth.

The most surprising thing is that there is life in this space, and the life forms are very close to those on the Earth, and plants and animals can be separated if strictly divided, but because of the specificity of this space, the living organisms have strange abilities, some of which are very powerful, even against advanced firepower weapons. In the third year of the discovery of the Second Space, under the vigorous search of the human exploration team, a large-scale gathering place of intelligent life was found 16700 kilometers southeast of the space entrance into the second space, and intelligent life with social system was found, and a total of 16 such gathering places were found, and the density of life was of course much smaller than that on the Earth. But the scale is huge, with 16 settlements totaling more than 6 billion square kilometers, 400 million for all races.

In the eyes of religious people, the situation of the second Yuan is like the heaven where the legendary gods live, so in the general population, the second Yuan is called the heaven.

The Second Meta-Space Protection Act of 3998, commonly known as the Celestial Law, was passed by the Space Administration, which did not disturb the indigenous inhabitants of the Celestial Realm for any reason, and did not allow the indigenous inhabitants of the Celestial Realm to know that humans were aliens who had entered.

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The third space is the space most incomprehensible to mankind, this space, there is no "time". Countless scientists have found that there is life in this space, but it exists in a form that humans cannot understand, and because of the different levels of its life form and human life form, there is no effective communication between the two kinds of life.

According to this characteristic, the third space is called the chaotic dimension, and it is still the least understood dimension of mankind.

The fourth space is the place where the most painful lesson for mankind, this space is about the same form of existence as the first space of mankind, but the life nurtured in it is completely different from the first space, in the star system where the entrance of the fourth space is located, there are 88 planets. Almost every planet has a surprisingly vigorous biological activity.

The creatures in this space have incredible power, individual ability is very outstanding, a very small number of particularly powerful creatures have the ability to operate in space, and can freely enter and exit the planet in the interstellar space with individual ability. However, the creatures in this space have not formed a perfect social system, and they are still in a tribal form of racial aggregation.

After entering this space for the first time, a powerful creature with an extremely aggressive nature launched a xenophobic attack on humanity, at that time, the entire exploration team was destroyed, and then invaded the first space through the broken space entrance, and mankind paid a heavy price to repel the enemy. Had it not been for the discovery of the Fifth space, in the subsequent second attack of the Fourth space, humanity might have led to total genocide for its greatest discovery.

Later, when it comes to the fourth space, people call it the "Demon realm", and there has always been a large number of troops stationed at the entrance of the fourth space to defend against the biological invasion of the "demon Realm".

Fifth space, in fact, human beings have discovered countless different dimensional Spaces over the years, but because each space has a vast airspace, human beings can not even explore the first space they live in, let alone other Spaces, only the space where life is found will be noticed. But the fifth space is an exception.

The fifth space does not have any signs of life, but there are traces of the existence of advanced civilization, research shows that this space with the same structure of the first and fourth space has existed extremely prosperous and highly developed civilization, but it may be a boom and decline, or war, or unfathomable disaster, resulting in the complete extinction of species.

From the current exploration shows that this civilization once reached a huge civilization based on the parent star, radiating to dozens of galaxies. At present, the scientific and technological development of the fifth space is the highest in all discovered space, at least one billion years earlier than the current human civilization. It is because of the discovery of the fifth space. Mankind obtained the technology handed down by the ancient civilization of different dimensions, which greatly improved the level of human science and technology in a short period of time, thus greatly increased the military strength of mankind, and defeated the repeated invasions of the "demon realm".

And from the remnants of civilization obtained since then, human beings have developed their own technologies, making human history a great leap forward.

"Future world" is the popular name in the public mouth. Some people call it the magic realm.

The sixth space and the seventh space were discovered at the same time, in fact, the seventh space was not discovered by human beings, when human beings discovered the sixth space, they have found that there is another space interface in the sixth space, this space interface, is leading to the seventh space.

The living standards of the creatures living in the sixth space are probably in the barbaric era of human beings, but the civilization of the seventh space has developed slightly faster than human beings, and has established contact with the sixth space thousands of years ago, and has promoted its development, but has maintained an attitude of not too much interference.

The Seventh space has never been visited by humans.