Britannica, Istanbulเก็บถาวร 2007-12-18 ที่ เวย์แบ็กแมชชีน: Until the Turkish Post Office officially changed the name in 1930, however, the city continued to bear the millenary name of Constantinople.
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Britannica, Istanbulเก็บถาวร 2007-12-18 ที่ เวย์แบ็กแมชชีน: Until the Turkish Post Office officially changed the name in 1930, however, the city continued to bear the millenary name of Constantinople.
