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Long before the advent of quartz crystals, digital displays, or GPS-enabled smartphones, ancient Romans were already walking around with personal time-telling devices in their hands. We are not talking about watches in the modern sense, of course, yet they fulfilled a strikingly similar role: they offered information, gave their wearer a certain so...

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The arch is one of the most important architectural innovations in history, and while its basic concept may have existed in early civilizations, it was the Etruscans and, later, the Romans who perfected and popularized its use. This seemingly simple curved structure revolutionized architecture, as it allowed for stronger, more durable buildings and...

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