Abraham (abu Yishaq) ibn Ezra, was from Tudela (Navarra) and grew up in al-Andalus, where he trained in Jewish and Arabian culture. He lived for some time in Toledo and in Cordoba, and also visited some countries in North Africa. He was a distinguished doctor, poet, grammarian, philosopher, cabalist and astronomer, which probably explains why he was called “The Admirable” by other Jews. His writings cover topics as diverse as mathematics, astronomy, medicine, philosophy and astrology. He also wrote profane poetry in Hebrew. He had a deep knowledge of Arabic, and translated the works of Arabic thinkers into Latin for them to be distributed in Europe. As a biblical commentator he wrote Commentary on the Pentateuch, a book which was widely read in the Middle Ages, and which was object of other commentaries. As a linguist he made the first attempt to systematize Hebrew grammar, and played an important role in promoting mathematics. One of the craters on the Moon, Abenezra, which is 42 kilometres across, was named after him.