"For those who have approached the question of the origin of the Indo-European peoples and languages from the angle of philology, the great problem has been that there are no texts about migrations, much less about military invasions… From the Rigveda, people have taken passages that tell about the Aryans' attacks on cities and concluded that they then must have been a foreign, warlike, nomadic people. Nor does Roman, Hittite, Slavic, Celtic, or Germanic, written material mention migrations or conquests from the time when the Indo-Europeans supposedly emigrated from their original home. The philologists have, however, been able to pint to certain loanwords, especially topographic and hydrographic names, as evidence of migration. But the cornerstone of philologists' work has been linguistic paleontology, which tried to re-create, through comparisons, a vocabulary that indicates knowledge about certain objects and phenomena (Arvidsson 2006, p.295)."