Before getting into the meat of this post, it’s important to understand blood typing.

Roughly 85% of the world’s population is Rh-positive, while only 15% is Rh-negative. Surprisingly, many people don’t know their blood type. If you’re one of them, I strongly encourage you to find out; it matters, particularly in emergencies and during pregnancy.

I’ve known my blood type for many years because it directly affected my pregnancies. I’m O-negative, and why that matters will become clear in a few paragraphs.

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The Discovery That Changed Medicine

In 1937, scientists Karl Landsteiner and Alexander Wiener discovered the Rh factor, named after the rhesus monkey, which also carries the gene. The Rh factor is a protein found on the surface of red blood cells.

This discovery expanded the blood group system from the four familiar types, A, B, AB, and O, to the eight types we recognize today.

More importantly, it solved a devastating medical mystery. At the time, dozens of newborns were dying daily from what we now know as Rh incompatibility. This research ultimately led to the development of the RhoGAM® injection in 1968.

If a pregnant woman is Rh-negative and carrying an Rh-positive baby, exposure to the baby’s blood can cause her immune system to develop antibodies. Without RhoGAM, those antibodies may attack the red blood cells of future Rh-positive pregnancies.

I carried Rh-positive babies, and thanks to modern medicine, RhoGAM protected both them and any future pregnancies.

Science solved the how, but not entirely the why.

Where Did Rh-Negative Blood Come From?

Many months ago, I began seeing posts suggesting a controversial theory: that Rh-negative individuals may possess “alien DNA.” The argument rests on one curious point: Rh-negative blood lacks the evolutionary Rh protein found in rhesus monkeys, which most humans carry.

If modern humans evolved from primates, the question arises:

Why would some humans not carry the rhesus gene at all?

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O-Negative Blood and Ancient Europe

Looking back roughly 35,000 years, researchers believe certain blood types became concentrated in specific populations. One of the highest incidences of Rh-negative blood occurs among people from the Basque region of northern Spain and southern France, where rates reach as high as 35%.

This geographic clustering adds another layer to the mystery.

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Royals, Presidents, and King John I

Recently, while watching an episode on Kendall Rae’s YouTube channel (I’m admittedly addicted), I stumbled upon a discussion about Rh-negative blood and elite bloodlines. She and her partner, Josh, noted that many U.S. Presidents are believed to be Rh-negative, as are members of the British Royal Family.

What caught my attention even more was the claim that nearly all U.S. Presidents (with one exception) are distantly related, traced back to King John I of England, also known as John Lackland, the king who signed the Magna Carta in 1215.

The moment I heard the name Plantagenet, I paused the video.

I’d seen that name before.

I went straight back to my family tree on Ancestry and found it, through my lineage to Louis VIII of France, a blog I had written not long ago. King John, it turns out to be my 25th great-granduncle.

In 2012, a 12-year-old girl named BridgeAnne d’Avignon discovered that all U.S. presidents but for Martin van Buren are blood related. They are descendants of the same English king, John Lackland Plantagenet, who is perhaps best known as Robin Hood’s enemy, and was the King who signed the Magna Carta in 1215.  Now, if you’re not familiar with the Plantagenets, they are a dynasty that ruled England from 1154 to 1485. The dynasty was founded by Geoffrey Plantagenet (d 1151), Count of Anjou. Approximately 190 seventeenth-century North American colonists were from the Plantagenet dynasty.  

I find this all wildly fascinating!  First, the whole theory on Rh-negative blood, although far-fetched, is quite intriguing. Then the fact that all, except for one US President, is a descendant of King John I.  More so the whole fascination that truly boggles my mind is that I am Rh- and that I also have lineage going back to King John I (he’s my 25th great-grand uncle), which means in some way, shape or form, I’m related to the majority of the US Presidents (I’d already discovered that I am the 6th cousin 5x removed of President Abraham Lincoln).

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Coincidence … or Something More?

Here’s where my mind truly starts spinning.

I am Rh-negative.
I descend from King John I’s bloodline.
That lineage still, in many ways, holds global influence.

Scientists generally attribute the Rh-negative factor to a random genetic mutation, which is entirely possible. But even within scientific circles, the precise origin remains unknown.

And that leaves room, at least philosophically, for questions.

If evolution is linear, and all humans descend from ancient primates, why wouldn’t we all be Rh-positive?

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The Sumerians and the Anunnaki

Some speculation surrounding alien DNA points to the Sumerians, the world’s first known civilization, dating back over 6,000 years.

The Sumerians recorded stories of celestial beings known as the Anunnaki, whom they believed came from the heavens and played a role in the creation of humanity.

These weren’t simple people imagining gods to explain thunder.

The Sumerians:

• Divided day and night into 12-hour periods
• Created the 60-minute hour
• Developed advanced mathematics, astronomy, and written language

If they were responsible for so many foundational aspects of modern civilization, it raises an intriguing question:

Why invent stories of beings descending from the stars?

Most historians classify the Anunnaki as mythology, much like the Greek gods. Yet some researchers believe these accounts may reflect real encounters interpreted through ancient understanding.

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Mutation … or Ancient Intervention?

So here we are.

Is Rh-negative blood simply a rare genetic mutation?
Or does it point to something older, stranger, and far less understood?

Do certain royal bloodlines and the rest of us who share this rare trait carry remnants of something not entirely human?

I don’t claim to have the answer.

But I do believe that when science says, “we don’t know,” curiosity has every right to step in.

And sometimes, the most fascinating questions are the ones that refuse to be neatly explained.

Hmmmm…