Basically, Sodom and Gomorrah were bombed into oblivion with the use of nuclear or atomic weaponry. The evidence is both Biblical and via the ancient Sumerian texts, as well as modern data which relates to a dramatic and stunning increase in windborne dust and what-not, the latter which apparently led to the end of the Akkadian Civilization. The latter is presented in the paper, "Climate change and the collapse of the Akkadian Empire: Evidence from the Deep-Sea" by Heide M. Cullen, et al. Their results docummented a "very abrupt increase in eolian dust and Mesopotamian aridity which is AMA radiocarbon dated to 4025 (plus or minus 125) cal. years BP [Before Present] and which persisted for approximately 300 years."  The graphs given by these researchers provide physical evidence of something very major happening, and while there is no reason to assume the authors believed Sodom and Gomorroh were A-bombed, the abrupt increase in dust does provide plausible evidence. 
In the written records from the time, meanwhile, there is simply no question. It is the open warfare between Enki and Enlil, circa 2000 B.C.E., in which Enlil’s sons are clearly identified as the guys who pulled out all of the stops, and sealed the fates of the twin cities -- as well as the Sumerian Civilization, which was downwind of the radioactive fallout. Sitchin , Gardner , and Bramley  have all identified the demise of the two cities as acts of atomic warfare.
But for those with less ready access to ancient Sumerian texts, consider the story as told in Genesis, chapters 14 and 19.
The account begins with the War of the Kings, which pitted Shinar (Sumer), Ellasar, and Elam (among others) against Sodom, Gomorrah, Admah, Zeboiim, and Bela (Zoar). When things went badly at one battle (Genesis 14:8-10), Lot, Abram’s brother’s son was captured as a Sodomite (because he had dwelt in Sodom).
Abram, upon hearing the news, rallied his 318 well trained and armed servants -- just the sort of thing that every sheepherder always keeps on hand -- and in true military fashion rescued Lot, “and his goods, and the women also, and the people.”
The king of Sodom, with others, wanted to reward Abram, but the hero accepted only from Melchizedek, King of Salem (who was the priest) the blessing of “the most high God, possessor of heaven and earth.” [The latter sounds like an Enlil promotional brochure.]
[For those concerned with a reticent Abram in receiving his just rewards, “the word of the Lord came unto Abram in a vision” (Genesis 15:1), wherein “the Lord made a covenant with Abram, saying, “unto thy seed have I given this land, from the river of Egypt unto the Great river, the river Euphrates.” (Genesis 15:18) This would have to be considered to be “greater Israel” and thus everything from the Nile to the Euphrates including the Sinai Peninsula, the West Bank, Lebanon, Syria, portions of Iraq, and presumably, all of Jordan and parts of Arabia. Obviously, this was not a bad deal for our boy -- even if he may have been dreaming at the time. I.e., “In your dreams, (b)Abe!”]
Meanwhile, after a quick name change for Abram/Abraham, the attention is drawn to Lot’s hometown, Sodom and the city, Gomorrah. The charge being brought was that the two cities were committed grievous sins. Abraham managed to plea bargain the charges down to a commutation of sentence if ten righteous men could be found in the cities -- but considering what might qualify as lacking righteousness, the cities weren’t out of the woods yet.
On the other hand, there was Lot, his goods (including women) still residing in Sodom. Which is curious. If Sodom and Gomorrah had found themselves on the wrong side in the Enki vrs. Enlil conflict, what was Lot doing there? Spying? A loyal follower of one side, who had been rescued once already? Was he worth saving again? Apparently.
Lot was told to clear out of Sodom in no uncertain terms. He was even advised to head for the hills, where mountains might shield his family from the impending destruction. Lot did the good neighbor thing and argued to avoid the wholesale slaughter of his fellows, but to no avail. Lot bailed, and “the Lord rained upon Sodom and upon Gomorrah brimstone and fire from the Lord out of heaven.” (Genesis 19:24).
Unfortunately, Lot’s wife looked behind her, and was turned into a pillar of salt for her trouble. [(6/22/06) One reader, Paul Cilwa, has noted that, "In Hebrew, the word used for "salt" also means "vapor". Lot's wife wasn't turned to salt. She was VAPORIZED."] When Abraham got wind of the event, “he looked toward Sodom and Gomorrah, and toward all the land of the plain, and beheld, and, lo, the smoke of the country went up as the smoke of a furnace.” (Genesis 19:28).
The aftermath was so terrifying that Lot and his daughters fled to a cave, where the natural assumption was that the human race was doomed (i.e. no men to beget children). The daughters then took the next step of lying with their father, conceived, and ultimately bore sons.
Originally posted by SLAYER69
Originally posted by BadBoYeed
The article mentions ancient corpses found in India with extremely high radiation levels....
" The levels of radiation there have registered so high on investigators’ gauges that the Indian government has now cordoned off the region. Scientists have unearthed an ancient city where evidence shows an atomic blast dating back thousands of years, from 8,000 to 12,000 years"
Many people say that these anomalies are proof of ancient aliens. That debate is still ongoing.
When I first heard about this tale and then later read about this I was very excited but I looked all over to find independent verifiable proof. There is none to be found. If someone could find and post any links available to a verifiable source for those claims, I'd love to read it. As of yet I've found nothing by any independent source.
AND for the record I do believe in a possible lost history of mankind. I don't think they ever reached our level or type of technology. [Explosive-internal combustion etc]
Maybe something along the lines of what Tesla was working on though.