What did the Phoenicians invent to help control their trade networks?

The Phoenicians imported metals, especially copper from Cyprus, silver and iron from Spain, and gold from Ethiopia (and possibly Anatolia). ... Tin (from Britain), lead (Scilly Isles and Spain), and brassware were also traded, the latter principally coming from Spain.

Explanation:

BRAILIEST PLEASE

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

that is probably something for you to answer