Gold is the currency of civilization. It is an indicator of economic strength and is used to rush units, buy technology from other civilizations, make treaties, and cause leaders to attack one another. Gold is also associated with trade. Accumulating a total of 20,000 or more gold is the primary prerequisite to an economic victory, in addition to building the World Bank wonder. There are several techs that can be researched to improve gold acquisition, such as Currency, Banking, and Networking.