By interpreting the animals as astronomical symbols, and using software to match their positions to patterns of stars, researchers dated the event to 10,950BC.

The dating from the carvings agrees well with timing derived from an ice core from Greenland, which pinpoints the event – probably resulting from the break-up of a giant comet in the inner solar system – to 10,890BC.

The engraving template is computer generated allowing both accuracy and flexibility in design.

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The event also wiped out many large animal species, and triggered a mini ice age.

Analysis of symbols carved onto stone pillars at Gȍbekli Tepe in southern Turkey – one of the world’s most important archaeological sites – suggests that a swarm of comet fragments hit Earth around 11,000BC.