Runestones in the context of "Runes"

Runes are the letters in a set of related alphabets, known as runic rows, runic alphabets or futharks (also, see futhark vs runic alphabet), native to the Germanic peoples. Runes were primarily used to represent a sound value (a phoneme) but they were also used to represent the concepts after which they are named (ideographic runes). Runology is the academic study of the runic alphabets, runic inscriptions, runestones, and their history. Runology forms a specialised branch of Germanic philology.

The earliest secure runic inscriptions date from at latest AD 150, with a possible earlier inscription dating to AD 50 and Tacitus's possible description of rune use from around AD 98. The Hole Runestone dates from between BC 50 and AD 275. Runes were generally replaced by the Latin alphabet as the cultures that had used runes underwent Christianisation, by approximately AD 700 in central Europe and 1100 in northern Europe. However, the use of runes persisted for specialized purposes beyond this period. Up until the early 20th century, runes were still used in rural Sweden for decorative purposes in Dalarna and on runic calendars.

Thyra or Thyri (Old Norse: Þyri or Þyre) was the wife of King Gorm the Old of Denmark, and one of the first queens of Denmark believed by scholars to be historical rather than legendary. She is presented in medieval sources as a wise and powerful woman who ordered the building or fortification of the Danevirke, consistent with her commemoration on multiple Viking Age runestones. These include those at Jelling which was the seat of power for her dynasty.

Although her existence is documented in Viking Age runic inscriptions, very little is known about Thyra with certainty as no other contemporary sources about her survive. Much of her story is pieced together through 12th and 13th century sources that broadly disagree with one another, such as Icelandic sagas and writings of the medieval historians Saxo Grammaticus and Sven Aggesen. When she was born and became queen is unclear, however, she likely ruled until her death in the middle of the 10th century. Historians widely agree that she and Gorm were the parents of Harald Bluetooth and likely also Canute. The Historia Norwegiæ additionally claims that they had a daughter, Gunnhild, Mother of Kings, though this is less certain.