Fri, Jul 17 04:19 AM

How Has Roman Concrete Lasted for Millennia? 1,900-Year-Old Latrine Offers Clues

Hacker News•Fri, Jul 17, 2026, 03:48 AM•2 min read

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Source: [Hacker News](https://www.smithsonianmag.com/smart-news/how-has-roman-concrete-lasted-for-millennia-a-1900-year-old-latrine-offers-new-clues-about-the-materials-impressive-durability-180989115/)

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