Speaking from a stage built on the steps of the Rathaus Schöneberg for an audience of 450,000, Kennedy said: Two thousand years ago, the proudest claim was the Civis Romanus Sum [“I am a Roman citizen”]. Today, in the world of freedom, the proudest claim is "Ich bin ain Berliner!"... All free men, regardless of where they live, are citizens of Berlin, and therefore, as a free man, I have to say "Ich. Proud of words. Bin ain Berliner!".
Kennedy used the phrase twice in his speech, including, at the end, pronouncing the sentence with his Boston accent and reading from his note "Is bin ein Bayerleiner", which he used to indicate an approximation to the German pronunciation. Wrote using English spelling habits. ,