Under that system there were just 2 types, Universal (the categories being combined) and International (or specialized)-where at a universal expo each country could build its own pavilion, but buildings could be provided for poorer countries.
There were just 2 types (the categories being combined) and International (or specialized). This was under that system.2 types were Universal. Where at a universal expo each country could build its own pavilion. Buildings could be provided for poorer countries.