 When La Maestranza bullring in Seville was authorized for construction in 1730 specifically to house bullfights, the original plans called for a rectangular arena for the first three years, only later to be changed to a circular form that avoided the cornering of the action and put all viewers at the same approximate distance, the same reason for the elliptical form of amphitheatres.Another circular plaza was begun in Ronda in 1754, and it featured its first bullfights in 1782.In the change from the 19th to the 20th century, the Neo-Mudéjar style became in vogue for plazas, involving decoration in visible brickwork.