Calculator watch financial functions (in the Casio CBA-10). Usually calculator watch operates with eight digits number, however, calculator watch can operate with 6 digits (for example, Casio C-801) or 10 digits (Casio CBA-10) numbers. Calculator watches first appeared in the mid 1970s introduced by Pulsar (1975, then a brand of the Hamilton Watch Company) and Hewlett Packard. Several watch manufacturers have made calculator watches over the years, such as Pulsar and Timex, but the Japanese electronics company Casio produced the largest variety of models. In the mid-1980s, Casio created the Databank calculator watch, which not only performed calculator functions, but also stored
1957 Bandy World Championship 1957 Bandy World Championship The 1957 Bandy World Championship was contested among three men's bandy playing nations and was the first ever Bandy World Championship. Norway declined to take part due to the Soviet invasion of Hungary the year before. The championship was played in Finland from 28 February to 3 March 1957, as part of the fifty year anniversary celebrations for the Ball Association of Finland, which at the time was the governing body for bandy in Finland. The tournament was officially opened by President of the republic Urho Kekkonen. All games, which were only three, were played at