Industrial Revolution, in modern history, the process of change from an agrarian and handicraft economy to one dominated by industry and machine manufacturing. This process began in Britain in the 18th century and from there spread to other parts of the world. Although used earlier by French writers, the term Industrial Revolution was first popularized by the English economic historian Arnold Toynbee (1852–83) to describe Britain’s economic development from 1760 to 1840. Since Toynbee’s time the term has been more broadly applied.
The answer is oral.
These were passed down through stories made by wise men or elders of a
village or tribe from generation to generation.
It was probably a strict process as each successor knew the history of
his clan for he was a source of knowledge to those around him.
