Obviously We've Still Got A Lot To Learn About Them

Cancer 'is purely man-made' say scientists after finding almost no trace of disease in Egyptian mummies

"Michael Zimmerman, a visiting professor at Manchester University, said: 'In an ancient society lacking surgical intervention, evidence of cancer should remain in all cases.
'The virtual absence of malignancies in mummies must be interpreted as indicating their rarity in antiquity, indicating that cancer-causing factors are limited to societies affected by modern industrialisation.'
To trace cancer's roots, Professor Zimmerman and colleague Rosalie David analysed possible references to the disease in classical literature and scrutinised signs in the fossil record and in mummified bodies.
Despite slivers of tissue from hundreds of Egyptian mummies being rehydrated and placed under the microscope, only one case of cancer has been confirmed."

Egyptian mummies filled with traces of cocaine and tobacco

An impossibility according to current anthropological dogma because both products only existed in the americas.