MovieChat Forums > Doctor Who (2006) Discussion > How did they know that pyramid was 5,000...

How did they know that pyramid was 5,000 years old?


I reckon Penny's in on it!!

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Likely an assumption based on it looking like the ones at Giza. It's one of those things that you get in such things that is never really explained, like "it escapes to feed every 3,000 years", when the whatever it is was only captured 3,000 years ago, so it's escape cycle can't possibly be known.

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