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In page Two-minute silence:

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In 1919, he approached Lord Northcliffe (the founder of both the Daily Mirror and the Daily Mail) with the intention of campaigning for it to be observed annually and Empire-wide. His idea was not taken up.[3] Writing to Lord Milner, then Colonial Secretary in September or October 1919,[4] he described the silence that fell on the city during this daily ritual, and proposed that this become an official part of the annual service on Armistice Day. He acknowledged that the idea came from Mr Brydone's Cape Town pause, saying that other towns followed its example but "nothing was as dramatic as the Cape Town observation simply because of the midday gun".[5] The meaning behind his proposal was stated to be:[6]