Spain and Portugal could thank the Arab Moors and the Sephardi Jews for bringing on the Iberian peninsula the Arabic mathematics and the Jewish instrument making. That is what enabled them to conquer the world by sailing and ... finding their way!
But later, the French and the Brits became the "rulers of the sea." Isn't if fair that the leading countries change with time?
In the 20th century, both Spain and Portugal suffered a totalitarian regime that didn't made them in favour amounts the countries building the European Union. When democracy came to Spain and Portugal in the 1970s, what was the best growing industry in both countries was the tourism.
Alas they built a bit too much, borrowed a bit too much from the banks, met the recession and ... here we are?
A week ago, I saw the interview of a Spaniard who went to Norway to seek a job since his country has one of the highest unemployment in Europe. He said something like this: "The problem is that, a few years ago, I went to the bank, asking for a loan of 100,000 Euros to buy a house and the bank answered: Why don't you borrow 150,000 Euros? Then you can also buy a nice car!"