The Celtiberian script is a Paleohispanic script that was the main writing system of the Celtiberian language, an extinct Continental Celtic language, which was also occasionally written using the Latin alphabet. This script is a direct adaptation of the northeastern Iberian script, the most frequently used of the Iberian scripts.
The Paleohispanic scripts are the ancient writing systems created in the Iberian Peninsula before the Latin alphabet became the dominant script. They derive from the Phoenician alphabet, with the exception of the Greco-Iberian alphabet, which is a direct adaptation of the Greek alphabet. Some researchers believe that the Greek alphabet may also have played a role in the origin of the other Paleohispanic scripts. Most of these scripts are notable for being semi-syllabic rather than purely alphabetic.
Paleohispanic scripts are known to have been used from the 5th century BCE—possibly as early as the 7th century, according to some researchers—until the end of the 1st century BCE or the beginning of the 1st century CE. They were the primary scripts used to write the Paleohispanic languages.
The Celtiberians were a group of Celts and Celticised peoples inhabiting an area in the central-northeastern Iberian Peninsula during the final centuries BC. They were explicitly mentioned as being Celts by several classic authors (e.g. Strabo). These tribes spoke the Celtiberian language and wrote it by adapting the Iberian alphabet, in the form of the Celtiberian script. The numerous inscriptions that have been discovered, some of them extensive, have enabled scholars to classify the Celtiberian language as a Celtic language, one of the Hispano-Celtic (also known as Iberian Celtic) languages that were spoken in pre-Roman and early Roman Iberia. Archaeologically, many elements link Celtiberians with Celts in Central Europe, but also show large differences with both the Hallstatt culture and La Tène culture.
There is no complete agreement on the exact definition of Celtiberians among classical authors, nor modern scholars. The Ebro river clearly divides the Celtiberian areas from non-Indo-European speaking peoples. In other directions, the demarcation is less clear. Most scholars include the Arevaci, Pellendones, Belli, Titti and Lusones as Celtiberian tribes, and occasionally the Berones, Vaccaei, Carpetani, Olcades or Lobetani.
Celtiberian or Northeastern Hispano-Celtic is an extinct Indo-European language of the Celtic branch spoken by the Celtiberians in an area of the Iberian Peninsula between the headwaters of the Douro, Tagus, Júcar and Turia rivers and the Ebro river. This language is directly attested in nearly 200 inscriptions dated from the 2nd century BC to the 1st century AD, mainly in Celtiberian script, a direct adaptation of the northeastern Iberian script, but also in the Latin alphabet. The longest extant Celtiberian inscriptions are those on three Botorrita plaques, bronze plaques from Botorrita near Zaragoza, dating to the early 1st century BC, labeled Botorrita I, III and IV (Botorrita II is in Latin). Shorter and more fragmentary is the Novallas bronze tablet.
The Botorrita plaques are four bronze plaques discovered in Botorrita (Roman Contrebia Belaisca), near Zaragoza, Spain, dating to the late 2nd century BC, known as Botorrita I, II, III and IV.
Although Botorrita II is in the Latin language, Botorrita I, III and IV, inscribed in the Celtiberian script, constitute the main part of the Celtiberian corpus.