Horizontal bar originated in Germany. 18th century Western European countries appear to seize wire acrobatics big loop action, inspired by this 1811 German gymnast Yang in Berlin on the outskirts of Hudson Hyde gymnastics field instead of using a Mugang wire acrobatics show, the first installation the world's first deputy horizontal bar. 1812 will Mugang to iron, later changed to steel, the bar increases flexibility and endurance. 1920s as an independent event. Bar length 2.4 m, diameter 2.8 cm, 2.55 ~ 2.75 m high. Bars at both ends were fixed on the pillar. 1896 is listed as an Olympic sport.