Regular Division of the Plane Regular Division of the Plane Regular Division of the Plane is a series of drawings by the Dutch artist M. C. Escher which began in 1936. These images are based on the principle of tessellation, irregular shapes or combinations of shapes that interlock completely to cover a surface or plane. The inspiration for these works began in 1936 with a visit to the Alhambra, a fourteenth-century Moorish castle near Granada, Spain. Escher had visited the Alhambra once before in 1922 but in this visit he had spent several days studying and sketching the ornate tile designs there. In 1958 Escher
Moorish Gibraltar Gibraltar retreated to the castle and surrendered after a few days to Medina Sidonia. They were expelled along with the city's Jewish population, to be replaced by Spanish Christians. The "Reconquista" of Gibraltar took place on the feast of St. Bernard, whom the Spanish named patron saint of Gibraltar and has remained so ever since. This brought an end to Moorish Gibraltar, just over 751 years after Tariq ibn-Ziyad had begun the conquest of Iberia. Moorish Gibraltar The history of Moorish Gibraltar began with the landing of the Muslims in Hispania and the fall of the Visigothic Kingdom of Toledo