The Nile was Egypt's central nervous system—transport, market network, and resource corridor.
Northward flow (current) + prevailing south wind = sail upstream, drift downstream. No roads needed. Boats: papyrus skiffs → wooden barges (300+ ton capacity).
Memphis (capital), Thebes (religious center), Elephantine (border trade), Heliopolis, later Alexandria (sea port). Seasonal fairs at festivals.
Wheat, barley, emmer, flax (linen). State granaries redistributed; surplus traded for luxury imports. Egypt = "breadbasket" of Rome later.
Gold (Eastern Desert, Nubia), copper (Sinai), limestone (Tura), granite (Aswan), alabaster (Hatnub). Quarry-to-site via Nile.
Ideas, scripts, religions, technologies flowed with goods. Nubian, Near Eastern, Aegean, Greek influences visible in art, architecture, language.
The Nile's predictability (annual flood) enabled centralized state control of agriculture—unique among early civilizations. Trade was state-monopolized, funding pyramids, temples, bureaucracy.