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The ancient world’s largest fortresses: Persia’s northern defences in late antiquity

In the 4th to 6th centuries AD, Persia was under attack from the north by the ‘White Huns’ and other powerful groups of steppe warriors. Persia’s response was to create a massive fortification belt – unsurpassed in scale anywhere in the ancient and medieval world, with only the possible exception of China. Eberhard Sauer, Jebrael Nokandeh, Hamid Omrani Rekavandi, Mohammadreza Nemati, and Mehdi Mousavinia have explored the backbone of the system: the densest concentration of mega-fortresses in the late antique world, in the Gorgan and Tehran Plains of Iran.

Vietnamese stringed instrument

What is it? This object, thought to be at least 2,000 years old, is believed to be a stringed musical instrument. The artefact is made from a single piece of deer antler and is c.353mm long, with a diameter of…

The secrets of church walls

had King Charles been in need of distraction or amusement during his Coronation in May 2023, he could have done worse than study all the graffiti carved into the woodwork of the Coronation Chair