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Humans

A West African writing system shows how letters evolve to get simpler

The characters used to write the Vai script, which was invented in Liberia in 1833, have become visually simpler over time, reflecting the evolutionary pressures acting on writing

By Colin Barras

11 January 2022

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

A character representing the syllable “bi” in Vai script

Kelly et al

The symbols we use to write words evolve to become visually simpler over time, and an analysis of a writing system from West Africa shows that they can do so over just a few generations.

The script used to write the Vai language was invented in Liberia in 1833 and is still in use today. Those who devised it may have had some awareness of the Latin and Arabic alphabets, but the Vai script isn’t modelled on either. Its characters denote whole syllables, while alphabetic letters represent…

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