The Roman Empire came about through the productivity of its people and its subsequent acquisition of wealth from those that it invaded.

The Spanish Empire began with productivity and expanded through the use of its large armada of ships, looting the New World of its gold.

The British Empire began through localized productivity and grew through its creation of colonies worldwide - colonies that it exploited, bringing the wealth back to England to make it the wealthiest country in the world.

In the Victorian Age, we Brits were proud to say, "There will always be an England," and "The sun never sets on the British Empire."

So, where did we go wrong? Why are we no longer the world's foremost empire? Why have we lost not only the majority of our colonies, but also the majority of our wealth?

Well, first, let's take a peek back at the other aforementioned empires and see how they fared. Rome was arguably the greatest empire the world has ever seen. Industrious Romans organized large armies that went to other parts of the world, subjugating them and seizing the wealth that they had built up over generations. And as long as there were further conquerable lands just over the next hill, this approach was very effective. However, once Rome faced diminishing returns on new lands to conquer, it became evident that those lands it had conquered had to be maintained and defended, even though there was little further wealth that could be confiscated.