5/5 How the invention of writing made the scientific revolution of the Enlightenment possible.
4/5 How the written word, originally used for accountancy, gave rise to human literature.
3/5 How the invention of writing influenced the spread of religion.
2/5 Melvyn considers the impact of the invention of the book.
1/5 How making signs on clay, wood or parchment enabled the development of human culture.