c. 2300 – 1700 BCE
Bronze Age Oxus Civilization (Bactria–Margiana)
No flag documentedNo single ruler documentedIndigenous Bronze Age ritual practice (uncertain link to later Zoroastrianism)
Who & why: more than a thousand years before the Achaemenid Persian rule that opens the next entry, the Oxus (Amu Darya) river basin supported the Bronze Age Bactria–Margiana Archaeological Complex, often called the Oxus civilization: walled towns with monumental mudbrick architecture, most famously excavated at Gonur Tepe, flourished roughly 2300–1700 BCE and traded tin, lapis lazuli, and other goods along routes reaching Mesopotamia and the Indus Valley. The culture's decline by the mid-second millennium BCE, for reasons still debated among archaeologists, predates by well over a thousand years the Persian-speaking Sogdian and Bactrian societies covered next.
What it represents: no flag or comparable territorial symbol is documented, or plausible, from this pre-literate Bronze Age culture; shown here honestly blank rather than invented.
World context: this span runs alongside the Old Kingdom's twilight and Middle Kingdom of Egypt (including the pyramids at Giza, already centuries old by this point), the Old Babylonian period in Mesopotamia under rulers like Hammurabi, and the mature Indus Valley Civilization at cities like Mohenjo-daro and Harappa — all Bronze Age contemporaries linked to the Oxus civilization by long-distance overland trade.