Texas 6th7th8th9th10th11th12th13th14th15th16th Subcategories This category has the following 4 subcategories, out of 4 total. 11th-century historians by nationality (15 C)A 11th-century antiquarians (5 P)B 11th-century biographers (1 C, 5 P)I 11th-century historians of the medieval Islamic world (4 C, 3 P)