Okay, question too obscure: Answer:
It might be noted here, that Cyrus had diverted the Euphrates River that flowed through Babylon so he and his men could slip under the city gates. “Thus saith the Lord to his anointed, to Cyrus, whose right hand I have holden, to subdue nations before him; and I will loose the loins of kings, to open before him the two leaved gates; and the gates shall not be shut” (Isaiah 45:1).
This Euphrates River stayed diverted, and Babylon was never again inhabited. Babylon was brought down and stayed down, as was prophesied by Jeremiah. “And Babylon shall become heaps, a dwellingplace for dragons [Hebrew jackals], an astonishment, and an hissing, without an inhabitant” (Jeremiah 51:37).