Eduard Sievers (25 November 1850, Lippoldsberg – 30 March 1932, Leipzig) was a philologist of the classical and Germanic languages. Sievers was one of the Junggrammatiker of the so-called "Leipzig School". He was one of the most influential historical linguists of the late nineteenth century. He is known for his recovery of the poetic traditions of Germanic languages such as Anglo-Saxon and Old Saxon, as well as for his discovery of Sievers' law.
He was educated at Leipzig and Berlin, and became professor extraordinarius of Germanic and Romance philology at Jena in 1871, receiving a full professorship there five years later. In 1883 he went to Tübingen, and in 1887 to Halle, whence he was called in 1892 to Leipzig.
Sievers' analysis was a system of five patterns which indicated how the poetic line (or, more specifically, the poetic half-line) was to be emphasized or unemphasized, e.g. stressed-unstressed-stressed-unstressed, unstressed-stressed-unstressed-stressed, etc. This seemingly elementary analysis was significant because of the difficulty experienced by previous scholars in identifying where the poetic line began and ended. Germanic poetry, in its written form, rarely indicated the line division.
Moreover, even though it was clear that some words were of greater importance than others and were thus supposed to be stressed, there were few limitations on the length of the unstressed sequences, which made the identification of the poetic line even more difficult. In Shakespearean verse, for example, a typical poetic line is: