… the recent changes as well: Durings its almost 1500 year long history the building has been eastern orthodox, roman christian, eastern orthodox again, muslim and secularized. It has survived iconoclasts, crusaders ( still not clear why exactly they sacked a Christian city at the Bosporus when they set out to liberate the holy land from muslims, but hey, middle ages make as little sense as times do today ) and muslim conquerers. Funny that Wikipedia titles it as the ‘fall of constantinople’ it was still there, just was run by different people. The walls of Constantinople did actually fall. Enough for things to have this outcome. But as far as walls are concerned they had a pretty darn good run.
In 17 years Hagia Sophia will be exactly 1500 years old. Erdogan will be a chapter in history books. Not one that many people will be proud off. The building, it will not care.