You already know the simple explanation behind sunburn. When your skin is exposed to the sun for a period of time, eventually it burns, turning red and irritated. Under the skin, things get a little more complicated.The sun gives off three wavelengths of ultraviolet light: 1  UVA. 2  UVB. 3  UVC.ou already know the simple explanation behind sunburn. When your skin is exposed to the sun for a period of time, eventually it burns, turning red and irritated. Under the skin, things get a little more complicated.
Anglo-Saxon, term used historically to describe any member of the Germanic peoples who, from the 5th century ce to the time of the Norman Conquest (1066), inhabited and ruled territories that are today part of England and Wales.
2.7. For example, Martin Welch states in his introduction to Anglo-Saxon England that the first three centuries (c. 400-700) [of the Anglo-Saxon period...] is the crucial period of settlement and conquest by Angles, Saxons, Jutes and other peoples from north Germany and south Scandinavia.