Hans Christian Andersen (often referred to in Scandinavia as H.C. Andersen) was a Danish author and poet. Although a prolific writer of plays, travelogues, novels, and poems, Andersen is best remembered for his fairy tales. Andersen's popularity is not limited to children; his stories—called eventyr, or "fairy-tales" — express themes that transcend age and nationality. Andersen's fairy tales, which have been translated into more than 125 languages, have become culturally embedded in the West's collective consciousness, readily accessible to children, but presenting lessons of virtue and resilience in the face of adversity for mature readers as well. Some of his most famous fairy tales include "The Little Mermaid", "The Ugly Duckling", "The Nightingale", "The Emperor's New Clothes" and many more. His stories have inspired plays, ballets, and both live-action and animated films.

German philologist and folklorist Jakob Ludwig Karl Grimm in 1822 formulated Grimm's Law, the basis for much of modern comparative linguistics. With his brother Wilhelm Karl Grimm (1786-1859), he collected Germanic folk tales and published them as Grimm's Fairy Tales (1812-1815). Indo-European stop consonants, represented in Germanic, underwent the regular changes that Grimm's Law describes; this law essentially states that Indo-European p shifted to Germanic f, t shifted to th, and k shifted to h. Indo-European b shifted to Germanic p, d shifted to t, and g shifted to k. Indo-European bh shifted to Germanic b, dh shifted to d, and gh shifted to g. This jurist and mythologist also authored the monumental German Dictionary and his Deutsche Mythologie . Adapted from Wikipedia.