During Alfred's reign, the main event was the Viking invasions of England. Alfred successfully defended his kingdom of Wessex against the Vikings and was able to push them back. He also made peace with the Viking leader Guthrum, which allowed for a period of relative peace in the region.

Alfred also implemented several legal and administrative reforms, such as the creation of a system of burhs, or fortified towns, which helped to improve the kingdom's defense. He also codified laws and established a legal system based on the principles of justice and fairness.

Another important issue was the promotion of education and scholarship. Alfred was a strong believer in the importance of education and learning, and he encouraged the translation of religious texts into Old English so that they would be more accessible to the people. He also established schools and promoted the learning of Latin and other subjects.

Additionally, Alfred is considered to be one of the first kings in Europe to have a navy. He ordered the construction of a fleet of ships to help him fight off the Viking invaders and protect his kingdom's coastlines.

Overall, Alfred's reign was marked by his successful defense against the Vikings, his legal and administrative reforms, and his promotion of education and learning. These achievements helped to establish a strong foundation for the future development of the kingdom of Wessex and laid the groundwork for the eventual unification of England.