In the Colonial Age, only outlaws are available for hire. With every Age up until the Industrial Age, more mercenaries will be available to hire. The former are randomly generated as the map is loaded, while the latter depends on the map type. Outlaws and mercenaries available at the Saloon in a game are shared across all players.
All European civilizations have the Dance HallHome City Card which upgrades the Saloon to the Dance Hall which allows the player to hire Ronin and reduces the population used by outlaw units by 2.
The Spanish have the Spanish Gold card which allows Pirates to be hired from both the Saloon/Dance Hall (even if the Pirate is not available on the current map) and Galleons, as well as increasing the hit points of Pirates and Galleons by 50%, and the Saloon/Dance Hall by 100%.
“Taverns, Inns, and Public Houses (a.k.a. Pubs) have a long and colorful history across Europe and North America. While the term Saloon commonly refers to establishments associated with the American Old West, businesses where local townsfolk gather to consume alcohol and discuss the issues of the day have existed for centuries.
The common denominator, of course, is the ready availability of alcohol, noted for its ability to loosen the tongue and inflame passions. The future course of nations was most often argued and planned within such walls. From Paul Revere to Wild Bill Hickock, the day's movers and shakers typically gathered in a local watering hole.”