Idrottir is a list of skills one possesses, used to contribute to one's blood-price in the Viking Age and thereabouts. They could be physical skills, or academic, such as reading and writing, use of a sword, riding of horses, herding of sheep, player of Chess, etc...
The more skills acquired, the higher the blood-price, and the higher one could (ideally) rise in society.
it is so important and i love it so much :)
salat is important so yeah...
the acropolis was so important because we say so!!!
why was R.B Bennett so important
why was the defence so important to Singapore
why was finding tobacco so important
so wh is she so important
Sacramento California is so important, because it is the capitol of California.
He was important because he was important
its important so you can live
Your question needs context. Why is calcium so important to what?
See "Why is ozone so important to us?"