Clay tablets were the earliest common writing medium, created in ancient Mesopotamia more than 5,000 years ago. They significantly contributed to the development of written language, administration, legal systems, and literature. Employing a stylus to create wedge-shaped impressions in soft clay, ancient cultures documented various items ranging from administrative records to poetry. These tablets maintained some of humanity’s earliest writings and were crucial to the development of urban societies, facilitating the preservation and sharing of knowledge through generations.
The oldest clay tablets originate from the late 4th millennium BCE in Sumer, located in southern Mesopotamia (present-day Iraq). They were utilized within temple economies, where priests and officials required monitoring of items like grain, cattle, and textiles. The tablet writing system—cuneiform—originated as pictographs and transformed into abstract wedge-like symbols. Cuneiform is the earliest recognized writing system in the world and was modified by several cultures, such as the Akkadians, Babylonians, and Assyrians.
Clay tablets were cost-effective, long-lasting, and simple to manufacture, which rendered them suitable for administrative uses. Scribes, educated in temple and palace institutions, documented contracts, trade dealings, taxes, and census information on these items. Tablets were dried in the sun or baked in ovens for extended preservation. The resultant archives formed the foundation of Mesopotamian documentation and enabled intricate societies to handle increasing populations, implement laws, and uphold state authority.
Besides administrative purposes, clay tablets also safeguarded some of the oldest literature in human history. The most well-known instance is the Epic of Gilgamesh, written in Akkadian cuneiform on a collection of clay tablets. This piece, originating from approximately 2100 BCE, is among the earliest existing stories and delves into themes of mortality, camaraderie, and the human experience. Legal codes like the Code of Hammurabi (circa 1754 BCE) were likewise engraved on tablets—and in certain instances, on stone stelae for public viewing—emphasizing the importance of writing in legislation and administration.
By 1500 BCE, clay tablets were the primary method of written communication across much of the Near East. Although later supplanted by papyrus and parchment in various areas, their impact persisted through the languages and legal systems they contributed to. Tens of thousands of clay tablets remain today, providing historians with a unique insight into ancient economies, religions, and everyday life. Clay tablets, as the earliest medium of written expression, established the groundwork for historical documentation.

Image citation:
Wikipedia, “Cuneiform tablet,” https://en.wikipedia.org/wiki/Cuneiform_tablet
Citations:
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Kramer, Samuel Noah. History Begins at Sumer: Thirty-Nine Firsts in Recorded History. University of Pennsylvania Press, 1981.
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Leick, Gwendolyn. Mesopotamia: The Invention of the City. Penguin Books, 2002.
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“Cuneiform Writing System.” Gale World History in Context. Accessed June 22, 2025.
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Foster, Benjamin R. The Epic of Gilgamesh. Norton Critical Editions. W. W. Norton & Company, 2001.