Jacob Grimm was a 19th century German scholar who, along with brother Wilhelm, published Grimms' Fairy Tales, a collection famous for its children's stories. Jacob Grimm was born on January 4, 1785, in Hanau, Germany. He and younger brother Wilhelm studied German folklore and oral traditions, publishing a collection of stories that eventually became known as Grimms' Fairy Tales, and includes narratives like Cinderella and Rapunzel. A prolific author, Jacob also did pioneering research on languages and created the principles known as "Grimm's law."