Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 05 — Copper and bronze  /  About year 3
05.20

Bronze bell, horn and signal flags

alarm, recall from the fields, messages between the settlements and to boats

KnowledgeYear 3Stands on 49 earlier

AWhat it needs

Needs 49 other products in all, 1 of them directly.

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