Surfing aimlessly on the net I happened to stumble over Google Ngram Viewer, a remarkable tool from an impressive company. Google has scanned 5.2 million books in six languages, or 20 percent of all book ever published. An outstanding performance (in accordance with the thesis that the most superb things come from USA, together with some other things…)
After doing this Hercules job Google offers the gigantic database for everyone to use. I sat fascinated for a long while studying all kinds of worlds and expressions. As an example I copied this diagram, showing three names mentioned here earlier, and the frequency of their appearance in international literature (Swedish is not among the six languages, of course). It was to my satisfaction that Palme 25 years after his death still is mentioned more often than our previous foreign minister.