Science & technology

William Smith publishes the first geological map of England and Wales

1815

In 1815 the English canal surveyor William Smith published A Delineation of the Strata of England and Wales, a hand-coloured map about 2.6 by 1.8 metres, the first national geological map. During his work on canals and mines, he noticed that rock layers occur in a fixed order and that each can be recognised by the fossils it contains, a principle that allows strata to be matched across great distances. Ignored by the Geological Society, he fell into debt and was jailed in 1819. He was honoured in 1831 with the Society's first Wollaston Medal as the 'Father of English Geology'.

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This moment belongs to the Industrial era (1760 CE to 1914 CE), steam, factories and revolutions. You can also browse everything in the 19th century.