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Ray Laurence

Ray Laurence

The Conversation

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A 2,000-year -old building site reveals the raw ingredients for ancient Roman self-healing concrete

This has re-written our understanding of how Romans manufactured concrete.

10.12.2025 70

The Conversation

Ray Laurence

The Roman empire built 300,000 kilometres of roads: new study

A new comprehensive map reveals the true scale of the ancient Roman road network – but it is still incomplete.

07.11.2025 10

The Conversation

Ray Laurence