Origin of the Spanish Language
2. Iberians mingled with Celts
3. Celtiberians spoke a form of Celtic
4. Under Roman rule, Latin became widespread
5. Vulgar Latin appeared from mixing with pre-Roman languages
6. Visigoths invaded, Latin remained official
7. Moors conquered, Arabic and Mozarabic became widely spoken
8. Christian kingdoms reconquered, Vulgar Latin dialects became dominant
9. Castilian dialect became the standard