Stakeholder Forum for a Sustainable Future was created in 1987.
It is unclear what you mean by "population" in this context. If you are referring to the number of people that work for Forum for the Future, I do not have that information. However, Forum for the Future is a non-profit organization that works with businesses and governments to create a sustainable future.
European Future Energy Forum was created in 2009.
The Answer Is created forum for nations in which international disputes could be settled
Montreal Forum was created in 1924.
Architectural Forum was created in 1892.
Forum Theatre was created in 1929.
Eagle Forum was created in 1967.
Forum Party was created in 1993.
Sociological Forum was created in 1986.
The Philosophical Forum was created in 1943.
Forum Communications was created in 1878.
The Libertarian Forum was created in 1969.