The Spanish town of Arjona declares independence and names its native Muhammad ibn Yusuf as ruler. This marks the Muhammad's first rise to prominence; he later established the Nasrid Emirate of Granada, the last independent Muslim state in Spain.

Arjona is a municipality in the province of Jaén, Andalusia, Spain. It is located 44 kilometres (27 mi) from the provincial capital, Jaén, and 77 kilometres (48 mi) from the city of Córdoba. It has an area of 158.45 square kilometres (61.18 sq mi), and as of 2017 it had a population of 5,662. It…