Author. He was the older of the two Grimm brothers, who became known worldwide for their collections of fairy tales. When Jacob Ludwig Carl Grimm was young, his father, Philip Grimm, died leaving Jacob's widowed mother and several siblings. With financial help of their aunt, Jacob and his brother Wilhelm attended high school in Kassel, an area on the most western border of Germany. Following their father's footsteps, the brothers studied law at University of Marburg. In 1809, he was employed as Royal Librarian for Napoleon's brother. He worked from 1816 to 1829 as a librarian in Kassel. He published the first German grammar textbook in 1819 and established Grimm's Law, a statement on the sounds used in the Germanic language. Between 1821 and 1822, the brothers earned extra money by collecting and publishing three volumes of folktales. With these publications, they hoped to prove for political reasons that all Germans shared a similar culture, thus advocating for the unification process of the small independent kingdoms and principalities to make one nation. Traveling from village to village, the brothers recorded by hand most of the folktales from oral narrations given by peasants; these would eventually become known as "Grimms' Fairy Tales." Among the best-known of these tales are "Hansel and Gretel," "Rapunzel," "Cinderella," "Rumpelstiltskin," "Snow White and the Seven Dwarfs," "Little Red Riding Hood" and "The Golden Goose." Their work would also go on to be translated into dozens of languages, and become regarded as a pioneering force in the field of folkloric investigation. In 1830, the brothers moved to Gottingen where Wilhelm became an assistant librarian and Jacob a librarian. In 1835 Wilhelm was appointed professor, but both were dismissed from their positions two years later for protesting against the abrogation of the Hanover Constitution by King Ernest Augustus. In 1841 they became professors at the University of Berlin, and accepted the colossal task of finishing a German dictionary; their first volume appeared in 1854. The completed dictionary, which was sixteen volumes, was finished in 1960, long after the Grimm brothers had died. Unlike his brother, Jacob never married. Throughout his career, he authored 29 books, eight of them with his brother Wilhelm.