Civilization manualBook 1: From Bare Hands to Steam and Electricity765 entries · 23 phases · 100 years
The Island
Phase 15 — Railways, steam and electric cars, the power grid  /  About year 45
15.13

Tar-bound road surface

crushed stone bound with tar; a smooth, dustless road for wheels

MakingYear 45Stands on 181 earlier

AWhat it needs

Needs 181 other products in all, 3 of them directly.

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