how far back in history do written sources go?

The original markings were in the form of thumbnails and symbols, and different ways of writing developed in different cultures. The discovery of the letter, at a time when the first civilizations were occurring around the world, marks the end of prehistory. From the moment people invented the letter, written clues about their lives and activities became part of everyday life: receipts and bills were written, contracts were signed, significant events, laws and literary works were recorded. It was the beginning of written history.

Explanation:

The original method of writing probably evolved from the clay marks used by traders in Mesopotamia.
Around 3500 BC. e. The markings were stamped on the surface of the clay ball, marking the type and quantity of goods, and a few hundred years later Mesopotamians began to use sticks to leave wedge marks on moist clay tablets.
Essential tables are sun-dried to be stored in libraries. The tags grew into a letter called cuneiform, which has been in use for almost 3300 years.

Class: History

Level: Middle school

Keywords: written sources, Mesopotamia, cuneiform, letter

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