Prior to two-dimensional impressions on clay tablets, Sumerian accountants recorded commodities using:

The birth of writing in fourth-millennium BCE southern Mesopotamia arose not from artistic impulses, but out of pressing economic necessity. In the burgeoning city-states of Sumer, such as Uruk, rapid urbanization and centralized religious temple economies generated administrative logistics too intricate for human memory alone. Priests and overseers required infallible records of agricultural yields, surplus grain silos, livestock inventories, and trade contracts. Initial mnemonic devices comprised three-dimensional clay tokens of varied geometric shapes representing commodities. By approximately 3200 BCE, temple scribes transitioned to impressing standardized two-dimensional pictographs onto damp clay tablets using sharpened reeds. Over subsequent centuries, scribes simplified these pictorial curves into stylized wedge-shaped impressions, yielding cuneiform. This technical transition enabled administrators to communicate abstract fiscal concepts, legal statutes, and tax obligations, consolidating institutional authority across Mesopotamian society.

Answer and explanation

Correct answer: A. Geometric three-dimensional clay tokens.

  1. Step 1: Locate the precursor accounting devices described before the development of two-dimensional tablet writing.
  2. Step 2: The passage notes: "Early mnemonic solutions employed three-dimensional clay tokens of diverse geometric shapes representing specific units of commodities." Scribes later impressed these tokens onto tablets.
Answer
Geometric three-dimensional clay tokens.

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