we now refer to Beijing, Mumbai, Varanasi, Kolkata...
(instead of Peking, Bombay, Benares and Calcutta)
and even Tbilisi for Tiflis*
but nobody has told us to say København for Copenhagen
or Praha for Prague -
and the Thais are too polite to ask us to stop calling
Krung Thep Bangkok.
Not even Dubliners refer to their city as Ath Cliath.
*Final i in Georgian, as in Romanian (and as y in Hungarian) is not pronounced.