The Republic of Singapore is a city and a state. It is one of the most prosperous nations in the world, with a purchasing power parity adjusted GDP of $701 billion and a per capita income of $131,580.

What follows is a deeper -- but still shallow -- dive into 2000 years of economic history, this time through the lens of GDP per capita around the world.

Australia is generating more solar energy per capita than any other country according to latest data from Ember. And it’s in 4th place for combined solar and wind.