Thousands of years ago, prehistoric people dragged massive stones for miles.

They arranged them in patterns across Europe, standing in circles, forming rows.

These monuments puzzled researchers for centuries.

Then came Alexander Tom, a Scottish engineer, an Oxford professor obsessed with numbers.

He surveyed hundreds of ancient sites, measured every stone, calculated every angle, and found something impossible.

A single unit of measurement, exactly 2.72 feet. This wasn't random. The same length appeared everywhere.

At sites separated by thousands of miles, built across thousands of years, Tom called it the

megalithic yard. Archaeologists called it nonsense. Stone Age people had no writing, no metal tools,

no advanced mathematics, but the number appeared everywhere, at every major site, in every structure.

This wasn't coincidence. Tom believed he'd found the blueprint of a lost system, a universal ruler connected to the stars, the sun, and the Earth itself.

The system required knowledge these ancient builders shouldn't have possessed.

So if Stone Age people didn't create this technology, who did?

The Alexander Tom was a retired professor of engineering from Oxford University.

He had the best survey equipment available.

On weekends and holidays, he'd load his car with measuring tools, then drive to remote locations,

visit stone circles that had stood for thousands of years.

Tom wasn't looking for artifacts or treasure.

He was looking for patterns.

Over decades of fieldwork, he studied more than 600 megalithic sites across Britain and France.

Then Tom made an extraordinary claim.

These ancient builders were using technology far ahead of their time.

These Neolithic people were thought to be primitive, no writing, no advanced mathematics.

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