Ski jumping is a snow sport in which the skiers ski down a takeoff ramp, then jump from the end of it and fly as far as possible before landing near a calculation point marked at the hill. They are scored on the basis of the distance covered and the style used. The sport was originated (as recorded) in 1808 in Norway when a Danish-Norwegian lieutenant Olaf Rye launched himself on the skis and covered a distance of 9.5m in the air to show the courage to his fellow soldiers. The first ever public competition of ski jumping took place at Norway on 22 January 1862. The sport is a part of winter Olympics since 1924 for men only and since 2014 for women also. The ski-jumping events can also be organized in summers on artificial surfaces made of plastic. The international federation of the sport (FIS) was founded in 1924.