Technology Overview History
Gain your point by persuasion, not by force.
- Bias of Priene, Classical Greek philosopher

Trade is the third Commerce Commerce Research available at the Library. It is preceded by Coinage and is required to research the fourth Commerce Commerce technology, Mercantilism.

Researching Trade further increases the Commerce Limit Commerce Limit of all resources (except Knowledge Knowledge) by +50 and the Climit Caravan Limit by +1. It also allows Caravans to establish trade routes with cities belonging to allied and peaceful nations.