Timeline Thursday 21 October 1824

Thursday 21 October 1824

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All times in UTC · Dashed edge = started before, or continues beyond, this day

Events on Thursday 21 October 1824 1

1824 Portland cement patented Joseph Aspdin patents the modern binding material used in concrete Bricklayer Joseph Aspdin of Leeds patented Portland cement on 21 October 1824, naming it for its resemblance to Portland stone. The material became the standard binder for concrete worldwide, underpinning most modern construction.