The transition from Elder Futhark to Younger Futhark began during the 7th and 8th centuries. This period saw a gradual shift in how the Norse people wrote their language. Before this time, the Elder Futhark served as an alphabet with twenty-four characters. It was known only to a literate elite during the Migration Period. Only about three hundred fifty inscriptions survive from that era. By the late eighth century, the reduction to sixteen runes was complete. The change happened alongside phonetic shifts in spoken Old Norse. Proto-Norse evolved into Old Norse, creating new sounds that required different writing solutions. The written system lost the distinction between voiced and unvoiced consonants. Vowel systems also changed significantly. These linguistic shifts forced scribes to simplify the alphabet. Some inscriptions mixed both systems during the transitional phase. Examples include DR 248 from Snoldelev and DR 357 from Stentoften. Objects like the Setre Comb show similar hybrid usage. Literacy eventually became widespread across Scandinavia. Runestones numbered around three thousand appeared by the ninth century.
Phonetic Adaptations
Sound changes in Old Norse necessitated reducing the alphabet to sixteen characters. The first ætt lost two letters: g and w. The old a rune became transliterated as ą because its sound closed further. The second ætt dropped the æ and þ runes. The j rune took on the value of a instead. The z rune moved to the end of the sequence as ər. This rearrangement marked the only change in letter ordering for the entire script. The third ætt shrank by four runes, losing e, ng, o, and d. Distinct sounds in speech were now written with identical symbols. Minimal pairs existed where long and short vowels sounded different but looked the same. Scribes avoided carving the same rune consecutively for the same sound. This convention caused spoken distinctions to vanish from writing. The resulting system reflected the phonology of early Old Norse rather than Proto-Norse. Trade and diplomatic contacts spread knowledge of this new alphabet across Europe. Frankish Fulda studied it under names like the alphabet of the Norsemen. The Book of Ballymote called it Ogham of the Scandinavians.