Terra (proposed currency)
Terra is the name of a proposed "world currency". The concept was revived by Belgian economist and expert on monetary systems Bernard Lietaer in 2001, based on a similar proposal from the 1930s.
The currency is meant to be based on a basket of the nine to twelve most important commodities. Lietaer opines this would provide a currency that wouldn't suffer from inflation:
The basic principle emerged from early concepts presented in an article in the French newspaper Le Fédériste on 1 January 1933. The idea to establish a L'Europa – monnaie de la paix, was given birth. The idea was enthusiastically picked up by Lietaer during an educational journey.