Peter John Reynolds was a British archaeologist known for his research in experimental archaeology

Experimental archaeology

Experimental archaeology employs a number of different methods, techniques, analyses, and approaches in order to generate and test hypotheses, based upon archaeological source material, like ancient structures or artifacts. It should not be confused with primitive technology which is not concerned...

 and the British Iron Age

Iron Age

The Iron Age is the archaeological period generally occurring after the Bronze Age, marked by the prevalent use of iron. The early period of the age is characterized by the widespread use of iron or steel. The adoption of such material coincided with other changes in society, including differing...

 and for being recruited as the first director of Butser Ancient Farm

Butser Ancient Farm

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, a working replica of an Iron Age farmstead in Hampshire

Hampshire

Hampshire is a county on the southern coast of England in the United Kingdom. The county town of Hampshire is Winchester, a historic cathedral city that was once the capital of England. Hampshire is notable for housing the original birthplaces of the Royal Navy, British Army, and Royal Air Force...

.

He demonstrated that ancient roundhouse dwellings

Roundhouse (dwelling)

The roundhouse is a type of house with a circular plan, originally built in western Europe before the Roman occupation using walls made either of stone or of wooden posts joined by wattle-and-daub panels and a conical thatched roof. Roundhouses ranged in size from less than 5m in diameter to over 15m...

could be constructed without a hole to let smoke escape, a feature that may have drawn the interior air through far too quickly, but that the smoke simply passed through the thatched roofs.