The name "Viking" was first used by foreign authors in the 11th century AD. Its origin is probably the Swedish word for bay, "vik". This shows the close connection between the people and the sea, of which they were totally dependent for their livelihood. They had a mythology of their own. Their gods were called "asar", The Vikings are often considered wild, drunken, merciless robbers. In fact, their main occupation was farming and trade. The Viking expeditions were mostly trade expeditions that sometimes degenerated to looting. But to be honest, there were also expeditions whose main purpose was to loot foreign coastal regions.