Trader

All Civilizations get Traders. They are trained at the market and a key unit in trading.

Naming

 * Carthaginians: Mekir
 * Celts: Cyfnewidiwr
 * Britons: Cyfnewidiwr
 * Gauls: Cyfnewidiwr
 * Hellenes: Émporos
 * Athenians: Émporos
 * Macedonians: Émporos
 * Spartans: Émporos Perioikos
 * Iberians: Merkatari
 * Mauryans: Vaishya
 * Persians: Tamkarum Arami (Aramaean Merchant)
 * Ptolemies: Émporos
 * Romans (Republican): Mercator Plebeius (Plebeian Merchant)
 * Seleucids: Émporos

Special Notes
You can garrison a trader on a Merchant Ship to increase it's Gain

Persians trader have a 25% bonus to Gain.