<div>The Gemara in Shabbos 10b says that at the time of Lot's escape, S'dom was 52 years old and Tzoar was 51. Rashi there states the following:</div>
<div>"Sdom preceded (Tzoar) by one year), as it explains that Sdom was 52, because you must say that the builders of the tower were in Shinar, and there was no population in the world except in that Bik'ah, as it writes "And the entire Land was one language.... and it was when they travelled from the east... and from there they dispersed to other places when they were scattered and they built themselves cities; and from the time they were dispersed until Sdom was destroyed it is but 52 years, for at the end of the days of Peleg is when the dispersion happened, as it says in Seder Olam... calculate the years of Peleg and it comes out that the year he died in was Avraham's 48th year, and when Sdom was destroyed that was the 99th year of Avraham..."
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<div>(Hope this adds something)</div>