Portland cement transformed 19th-century construction and remains the foundation of modern concrete. Its invention is credited to a bricklayer from northern England.
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Portland cement transformed 19th-century construction and remains the foundation of modern concrete. Its invention is credited to a bricklayer from northern England.
Anoniem stemmen is mogelijk. Registreer voor een profiel en score.
Which Norwegian explorer led the first expedition to successfully traverse the Northwest Passage by sea, completing the journey in 1906?
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