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Why did Churchill once mistake Roosevelt's letter for a typographical document? Detailed answer

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Why did Churchill once mistake Roosevelt's letter for a typographical document?

Typically, typewriters have a monospace font (when all characters are the same width). In 1944, IBM released a typewriter with proportional type called Executive and presented the first copy to President Roosevelt. People accustomed to monospaced typewritten text mistook what was printed on the Executive for printed documents. Churchill, having received the first such letter from Roosevelt, replied: "Although our correspondence is important, there is no need to print it in a printing house."

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Which athletes originally started wearing polo shirts?

Polo shirts originally appeared among tennis players - namely, the ten-time Grand Slam winner Frenchman René Lacoste in 1926. A year later, Lacoste placed an image of a crocodile on the chest of his shirts, and after the end of his tennis career, he founded his clothing brand Lacoste under the same emblem. However, the new shirts began to be worn not only by tennis players, but also by other athletes, especially polo players. It was under this name that the new clothes gradually became entrenched in the general lexicon.

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