The blood groups did not arise randomly over millennia; they suddenly appeared. I found a text that I will now simply present to you as I found it. Following that, a comment from me.

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There are four main blood groups on this planet.
A, B, AB, and 0.
Every medical textbook will tell you that they naturally developed over thousands of years through genetic mutation and environmental adaptation. That is the official explanation. However, it is incomplete.

Blood group 0 (https://t.me/simonevoss/18316?comment=112390) is the universal donor. It can donate to all but can only receive from its own type. It is the oldest blood group on Earth and has been found on Earth for 40,000 years. Every indigenous population on the planet, before colonization and mixing, was almost exclusively type 0. The original human blueprint was this blood group.
Then something changed.

Blood group A suddenly appeared in the archaeological record about 25,000 years ago, concentrated in Europe and parts of Asia.
Type B arose separately, mainly in the Himalayas and Central Asia.
Type AB, the rarest, appeared last and only where A and B populations overlapped.

Here is what they do not teach you: These blood groups did not evolve. They appeared. Fully formed. At specific geographical locations. At specific times. With specific immunological properties that serve specific functions.

Type 0 aggressively fights every pathogen. It is the warrior blood. Type A produces more cortisol, making it more susceptible to social hierarchy and authority. Type B carries unique lectins that affect neurological tissue in a way that science has not yet fully explained. Type AB combines properties that should not coexist in a single system.

The Japanese government officially uses blood type in psychological profiling. It has been doing this since the 1930s. Large companies organize teams based on blood type composition. This is not superstition. It is applied hematology, which the Western world pretends does not exist.

Your blood type determines how you respond to diseases, stress, food, electromagnetic frequencies, and pharmaceuticals. It determines which frequencies your cells resonate with.

You were not born by chance. You were coded at birth. And this code is, among other things, in your blood.

👉🏻 Why do most people not even know their own blood type?

So much for the text; I only improved the title a little. And now consider how it is possible that blood groups simply appear. Either someone intentionally altered our blood. That is presumably what the author wants to say, as the title states your blood was assigned to you. This, in my opinion, contradicts the fact that indigenous peoples have the original blood group 0. I would say the spread occurs through mixing. But the colonial period is only about 400 to 500 years ago. It is possible that the deep state already had such capabilities back then; I do not know. That would be a medicine that officially does not exist. But the real question is, where do the blood groups come from? How can they simply appear?

Now, according to my sources, the books of travelers, our society was still very intergalactic until about 3,000 years ago; the secrecy and restraint from the outside world only began with Pharaoh Akhenaten. If that is true, then it is quite possible that a few settlers from space joined us 25,000 years ago who had different blood groups. Unfortunately, the Voyager books do not describe the history in such detail; there is nothing about that. They are full of genetics regarding the division of our original 12-stranded DNA into 6 original colonization groups with two DNA strands each 550 million years ago. This is an explanation for me as to why there are Asian, Black, White, and Brown skin types; they must all have had blood group 0 if that is the oldest group. And it is a rather simple conclusion that in an intergalactic society, not everyone travels just for trade from one planet to another, but that now and then larger groups also switch from one planet to another. If such a switch occurred 25,000 years ago and these people settled in Europe, then in my opinion, that is the best explanation for where these blood groups come from and why they can suddenly just appear. For that, the crew of a spaceship with perhaps 100 to 200 people is sufficient. They get an area in which to found a village; that is all that is needed. The rest is done by reproduction.