Alexis said:

“It’s probable that Mecca was founded not by Abraham but by King Nabonidus of the late Babylonian Empire. King Nabonidus worshipped a moon deity and extended his empire into Arabia as far as the modern city of Medina. He was fond of founding shrines, and it would not have been out of character for him to found the shrine at Mecca. The deity fits. The meteorite worship fits. Even the southern focus of Nabonidus’s imperialism fits.”

I’m not familiar with King Nabonidus and can not comment. The Arabs did almost everything they could to erase their pre-Islamic history (a pity actually). The better ancient Arabian coins came from the Kingdom of Nabatea (the Nabateans did a fair amount of trade with the Greeks and Romans). The Nabateans (like the ancient Jews) embraced Hellenic culture and some of their coins were patterned after the Athenian Owl tetradrachmas.