Protected by a near-universal ancient taboo against harming a messenger, heralds carried declarations of war, truce offers and formal challenges between rulers who might otherwise have killed any other stranger crossing into hostile territory. As permanent embassies, written treaties and professional diplomats took over the messenger's function, the herald survived mainly as a ceremonial court title rather than a working diplomatic role.
Herald no longer exists as a living trade. Here is what erased it, and which profession took on the work.
What else was happening then
c. 1350 BCE
The Amarna letters
Roughly 380 cuneiform tablets found at Akhetaten record Egyptian pharaohs corresponding with the rulers of Babylon, Assyria, Mitanni and the Hittites as royal "brothers," using a shared diplomatic language, Akkadian, and a system of reciprocal gifts — the oldest large diplomatic archive to survive.
c. 450 BCE
Athens formalizes the proxenos
Greek city-states appointed a prominent citizen of one city, a proxenos, to look after another city's interests without formal accreditation, while custom held that a herald's person was sacred and could not lawfully be harmed even by an enemy at war — an early substitute for both embassies and diplomatic immunity.
Where that work lives now
From ancient royal envoys and Venice's resident ambassadors to the Congress of Vienna and the UN, still negotiating peace one careful sentence at a time.
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