Did the Babylonians draw this conclusion? If so, they don't appear to have written it down, but the Greeks wrote many things down, and were already visiting Babylon by 500 BC. After the Babylonians finally found the explanation for eclipses, the Greeks took it on board and in the third century BC, Aristarchos of Samos wrote down the conclusion about the Moon shining by reflected light.

Wonderful, but now like the Babylonians we do careful observation, and like the Greeks we speculate on causes. Will we find the Higgs boson? Possibly, but remember what happened to that Lewis Carroll character who thought he had finally found the Snark:

In the midst of the word he was trying to say,
In the midst of his laughter and glee,
He had softly and suddenly vanished away
For the Snark was a Boojum, you see.

Boojums aside, when we finally find the explanation for mass, I hope it throws up something a bit more, just as the Babylonian explanation for eclipses showed it is the sun's light that causes the moon to shine.