Kingdom of England unity ever since. During the reign of Æthelred the Unready (978–1016), a new wave of Danish invasions was orchestrated by Sweyn I of Denmark, culminating after a quarter-century of warfare in the Danish conquest of England in 1013. But Sweyn died on 2 February 1014, and Æthelred was restored to the throne. In 1015, Sweyn's son Cnut the Great (commonly known as Canute) launched a new invasion. The ensuing war ended with an agreement in 1016 between Canute and Æthelred's successor, Edmund Ironside, to divide England between them, but Edmund's death on 30 November of that year left England united
King Leonardo and His Short Subjects by Mr. Mad (voiced by Norman Rose), a mad scientist with a domineering personality. When each of his schemes falls through, Mr. Mad disappears "as if by magic" before he can be apprehended. Each half-hour episode of "King Leonardo" consisted of five animated segments. Each half-hour included a two-part "King and Odie" episode, with other characters featured in between: Early in the series' NBC run, selected Columbia Pictures theatrical cartoons were aired on the program, some featuring The Fox and the Crow and Li'l Abner. These shorts were added to fill time when production of the early shows was delayed.