Events By Place Europe Abd-ar-Rahman I lands in Spain, where the next year he'll establish a new Umayyad dynasty. Offa deposes king Bernred of Mercia and takes the kingdom. Cynewulf deposes King Sebright of Wessex and takes the kingdom. The Anglo-Saxon Chronicle suddenly changes in style, from short descriptions to true short stories. China An Lushan begins the Anshi Rebellion against the Tang Dynasty state of China. Trisong Detsen becomes King of Tibet. Births Deaths Wang Changling… (More on 755)