query: When was the para-alpine skiing classification system developed?
passage: Para-alpine skiing classification
The first classification systems for para-alpine skiing were developed in Scandinavia in the 1960s, with early systems designed for skiers with amputations. At the time, equipment had yet to be developed to allow participation for skiers with spinal cord injuries. The goal of the early classification systems was to be functional but ended up being medical classification systems. At the first Winter Paralympics in 1976, there were two classifications for the sport. By the 1980s, classification existed for skiers with cerebral palsy. At that time, with inspiration from wheelchair basketball classification, efforts were made to make classification more of a functional system. Ten classes existed by the 1980s, and since then, efforts have been made to improve the efficiency of classification by reducing the number of classes so fewer medals can be rewarded.
passage: Para-alpine skiing classification
Competition rules for classes use rules set by or modified from rules created by the International Ski Federation. For skiers with visual impairments, guides are used to assist the skier down the course. For standing skiers, different class rules determine what sort of equipment is allowed in competition, such as one pole, two poles or no poles, or one or two skis. Sit skiers use a specially designed ski called a mono-ski. Skiers are classified based on medical assessment, and their body position when they ski. Blind skiers are evaluated purely on a medical assessment.