What has been the significance of a written alphabet to past societies?

Literacy happened in Egypt, more than a millennium after writing was born.

The first formal alphabet emerged around 2000 BC. C. to represent the language of the Semitic workers in Egypt, and it was conceived from the alphabetic principles contained in the Egyptian hieroglyphs. Most of the world's current alphabets either descend directly from this root, for example Greek and Latin alphabets, or were inspired by its design.

There were different alphabets, Greeks, Romans, peninsular and Greeks

Explanation:

As soon as literacy emerged, it was considered to be a means of communication or codes by which it sought to transmit something.

Some considered it an ordered system of graphic signs that was used in the writing of some languages and that was based on the more or less approximate correspondence between these signs and the phonemes they represented.

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john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.