For a big part of the 20th century (from 1915 to 1989), beer was illegal in Iceland. On March 1st, 1989 it became legal after locals vote for this prohibition. Therefore it is a big celebration for Icelanders on that day each year with varieties of beer on the table, as it holds its place as the favorite beverage of the Icelanders so you will definitely find one you like. Icelanders do not sell their beer at supermarkets like almost all other countries, they have a liquor shop called Vínbúðin that you can find all around Iceland and they are the only place permitted to sell alcoholic drinks in Iceland besides from bars and restaurants. On that day you will find great offers on beer all around Iceland.