Cuba was once the world's largest sugarcane exporter. Until the 1960s, the US received 33% of its sugarcane imports from Cuba. During the cold war, Cuba's sugar exports were bought with subsidies from the Soviet Union.
Sweden experimented with a practice that drivers who drove under the speed limit would have won a lottery where funds come from the fines paid by speeders. The average speed limit was reduced by 22 percent.
The only continent with no active volcanoes is Australia.
The Yamato dynasty of Japan traces its origins to 660 A.D., making them the oldest continuous hereditary monarchy in the world.
There are no rivers in Saudi Arabia.