Infantry in the Middle Ages heavy toll on the English invaders of their lands. Adapted by the English, the longbow was nevertheless a difficult weapon to master, requiring long years of use and practice. Even bow construction was extended, sometimes taking as much as four years for seasoned staves to be prepared and shaped for final deployment. A skilled longbowman could shoot 12 arrows a minute, a rate of fire superior to competing weapons like the crossbow or early gunpowder weapons. The nearest competitor to the longbow was the much more expensive crossbow or Arbalest, used often by urban militias and mercenary forces. It required
Medieval commune by the Italian precedent, but many northern ones (and even the Swiss communes north of Gotthard Pass) may well have developed concurrently and independently from the Italian ones. Only a few of these medieval rural communes ever attained imperial immediacy, where they would have been subject only to the king or emperor; most still remained subjects of some more or less distant liege. During the 11th century in northern Italy a new political and social structure emerged. At this time, some medieval communes developed to the form of city states. The civic culture which arose from this "urbs". In most