Gunnar Heinsohn and Otto Steiger in their book "Eigentum, Zins und Geld" developed a theory called "Property Theory of Money", which also explains money by endogenous processes.
Gunnar Heinsohn (2003) argues that an excess in especially young adult male population predictably leads to social unrest, war and terrorism, as the "third and fourth sons" that find no prestigious positions in their existing societies rationalize their impetus to compete by religion or political ideology.
In 1995, Topper, who had by then got in contact with a group of German researchers including Gunnar Heinsohn, Heribert Illig, Christoph Marx and others, who all question the established chronology, started to take a closer look on the Middle Ages and published a series of books which try to show that History, as we know it, was created from the 16th century onwards - according to this idea, there are hardly true facts before 1400 AD.
Gunnar Myrdal | Gunnar Hansen | Johan Gunnar Andersson | Gunnar Asplund | Gunnar Johansen | Gunnar Heinsohn | Gunnar Harding | Gunnar | Jan Gunnar Hoff | Gunnar Svensson | Gunnar Stålsett | Gunnar Sætren | Gunnar Malmquist | Gunnar Knudsen | Gunnar Jarring | Gunnar Halle | Gunnar Berg (composer) | Gunnar Berg | Morten Gunnar Larsen | Gunnar Widforss | Gunnar Vatten | Gunnar Thorson | Gunnar Thoroddsen | Gunnar Staalesen | Gunnar Peterson | Gunnar Öquist | Gunnar Nelson | Gunnar Johansson | Gunnar Jansson | Gunnar Heckscher |