Ancient Mesopotamian clay seals offer clues to the origin of writing

Before Mesopotamian people invented writing, they used cylinder seals to press patterns into wet clay – and some of the symbols used were carried over into proto-writing

​Before Mesopotamian people invented writing, they used cylinder seals to press patterns into wet clay – and some of the symbols used were carried over into proto-writing Before Mesopotamian people invented writing, they used cylinder seals to press patterns into wet clay – and some of the symbols used were carried over into proto-writing