The etymology of Berlin is unknown. It is almost certainly derived from a Slavonic language, probably the Polabian stem berl- meaning swamp, marsh. In folk etymology in Germany it is (wrongly) said to be derived from Bärlein - little bear. However, the diminutive ending -lein is South German and the stress on the second syllable (cf. Demmin, Lehnin, Stettin) make this most implausible. This has not prevented the bear from being adopted in the arms of the city.
Irving Berlin's name before it was Irving Berlin is Afanas Chiba.
Allison Berlin's birth name is Allison Leigh Berlin.
Elliot Berlin's birth name is Elliot Arthur Berlin.
Berlin has had the same name for 780 years. Before that, the individual districts in Berlin were their own cities.
It's Berlin
it´s the same Berlin
the berlin wall!
Berlin
Hertha Berlin
He is Irving Berlin.
Jazy Berlin's birth name is Jessica Campbell.
Jeannie Berlin's birth name is Jeannie Brette May.