The Anglo or Anglo-German concertina is, historically, a hybrid between the English and German concertinas. The button layouts are generally the same as the original 20-button German concertinas designed by Uhlig in 1834, and in a bisonoric system. Within a few years of its invention, the German concertina was a popular import in England, Ireland, and North America, due to its ease of use and relatively low price. English manufacturers responded to this popularity by offering their own versions using traditional English methods: concertina reeds instead of long-plate reeds, independent pivots for each button, and hexagon-shaped ends, resulting in the modern Anglo concertina.