"Die Ammen-Uhr: Aus des Knaben Wunderhorn" by Arnim and Brentano is a collection of folk song texts published between 1805 and 1808. This three-volume anthology gathers 723 German songs spanning love, soldiers, wandering, and children's themes from the Middle Ages through the eighteenth century. Born from the Romantic movement's passionate search for Germanic roots, the collection sparked debate about authenticity versus artistic interpretation. The editors smoothed rough edges through poetic intervention, aiming for broad appeal rather than scholarly precision.