Wiki says
The lowest point on dry land is the shore of the
Dead Sea, shared by Israel, Palestine and Jordan, 418 m (1,371 ft) below sea level.
Quran says
The Byzantines(Romans) have been defeated
In the lowest land. But they, after their defeat, will overcome.
Within three to nine years. To Allah belongs the command before and after. And that day the believers will rejoice. Quran 30:2-4
these verses reveal that the Romans have been defeated (by Persians) in a place, which is the lowest land of earth.
word used for lower is أَدْنَى (Adna), this word has meanings like bottom, lower, below, down,...
Google Translator
scholars of that time only considered this word as 'near' but Geology has revealed that it was the lowest part of the land on earth.
In 614 AD, five years after Bi'thaat (appointment of Muhammed as the prophet), a battle occurred between Iran (Persia) and Rome (Byzantine) in a place near Jerusalem. King Khosro Parviz, the emperor of Iran invaded Jerusalem and committed genocide and took the cross ascribed to Jesus Christ with himself.
Parviz continuously dominated the Romans until he conquered the Asia Minor (now Turkey), which was the greatest part of the empire of Byzantine in that time. In 617 AD, he advanced on the city of Constantine. Heraclius tried to flee. He dispatched the government properties to Africa but they were trapped by the Persian troops in Roman Sea and were called as the unlooked-for and easy come treasure. The great ones of Byzantine held Heraclius, not letting him flee and made him fight with the Persians. Eventually, in 622 AD, he vanquished the troops of Parviz in the port of Isus, which was located in the south of Asia Minor and this was the beginning of Romans victory over the Persians..
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