Understanding ancient history is no easy feat.

And although we might think we've got things all figured out,

one discovery can turn everything on its head.

So stay tuned for some incredible underground discoveries that have changed history.

They're listening.

You're listening.

You're listening. Be amazed. Number 10.

King Tut's Dagger.

The discovery of King Tutankhammonds' ferionic tomb by Howard Carter and George Herbert

in 1922 is still one of the greatest feats in archaeological history. The shockingly intact tomb hidden

underneath the remains of workman's hut in Egypt's valley of the kings triggered a frenzied interest

dubbed Egyptomania, which saw greater archaeological interest in the period as stories of ancient

Egypt were adopted in the popular culture. The tomb contained around 5,400 items,

including thousands of valuable antiques, which took nearly a decade to catalog, one of which

was a small ornate dagger belonging to the king. The iron dagger, which was buried with the mummy

himself, baffled researchers his ironwork was incredibly rare in Egypt 3,300 years ago,

and the blade had barely even rusted. In 2016, technological advancements allowed re-examination

on the object to take place using an X-ray fluorescent spectrometer, which revealed that the metal

used was of extraterrestrial origin. High levels of cobalt and nickel matched those of known meteorites recovered from the Dead Sea

and were similar to traces in another Egyptian iron artifact tested in 2013.

The results indicated that Stone Age artisans were far more advanced than previously thought,

as metal workers likely sought out meteorites to smelt down into iron

...