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The matchmaker who discovered reinforced concrete
David Valero-Carreras
14-01-2026
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![Businessman Ivar Kreuger (the "financial genius") in an archive photo from the time of his entry into the Ericsson company.](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 9"%3E%3C/svg%3E)