Britannia

is a major landmass divided into various kingdoms and the main setting of most of the events in The Seven Deadly Sins series.

3,000 years ago
Britannnia, along with the rest of the world, was created by Chaos long before the Holy War thousands of years ago along with the five races before it was sealed away by two of it's creations, the Demon King and the Supreme Deity after they created their own separate realms and their own individual races.

The land was once beset in a conflict known as the Holy War between the alliance of the Four Races (Human, Giant, Fairy, and Goddess) and the Demon Clan, causing great destruction and death in the continent until the allied clans' victory with the Coffin of Eternal Darkness sealing away the Demon Realm from Britannia.

However, it is said that the races fought over the overflowing magic powers of this land and paid dearly for it.

Many years passed as the fairies, giants and goddesses had faded away into legend and folklore after returning to their respective realms including the Demon Clan among the people in Britannia and the humans ruled the realm with the Holy Knights as their guardians.

Trivia

 * Britannia is the old name for Britain.
 * In the world of The Seven Deadly Sins, the territory shown as Britannia is actually Britain's northern territory, Scotland. Edinburgh is the capital of Scotland.
 * At the time the series seems to be set, Scotland as it is now geographically would not have been considered part of Britannia (which was modern day England and Wales before the Anglo-Saxons invaded) but rather Pictland or Alba (what it is still called in it's indigenous language, Scottish Gaelic).
 * Despite taking place in a Celtic area, little of Celtic culture is shown, the only example being the soundtrack resembling Gaelic folk songs.