is organised and played separately, has also achieved international standard. The most successful side playing international cricket is Australia, which has won seven One Day International trophies, including five World Cups, more than any other country and has been the top-rated Test side more than any other country. History Origins Cricket is one of many games in the "club ball" sphere that basically involve hitting a ball with a hand-held implement; others include baseball (which shares many similarities with cricket, both belonging in the more specific bat-and-ball games category), golf, hockey, tennis, squash, badminton and table tennis. In cricket's case, a key difference is the existence of a solid target structure, the wicket (originally, it is thought, a "wicket gate" through which sheep were herded), that the batter must defend. The cricket historian Harry Altham identified three "groups" of "club ball" games: the "hockey group", in which the ball is driven to and from between two targets (the goals); the "golf group", in which the ball is driven towards an undefended target (the hole); and the "cricket group", in which "the ball is aimed at a mark (the wicket) and driven away from it". It is generally believed that cricket originated as a children's game in the south-eastern counties of England, sometime during the medieval period. Although there are claims for prior dates, the earliest definite reference to cricket being played comes from evidence given at a court case in Guildford in January 1597 (Old Style, equating to January 1598 in the modern calendar). The case concerned ownership of a certain plot of land and the court heard the testimony of a 59-year-old coroner, John Derrick, who gave witness that: Being a scholler in the ffree schoole of Guldeford hee and diverse of his fellows did runne and play there at creckett and other plaies. Given Derrick's age, it was about half a century earlier when he was at school and so it is certain that cricket was being played c. 1550 by boys in Surrey. The view that it was originally a children's game is reinforced by Randle Cotgrave's 1611 English-French dictionary in which he defined the noun "crosse as "the crooked staff wherewith boys play at cricket" and the verb form "crosser as "to play at cricket". One possible source for the sport's name is the Old English word "cryce (or "cricc) meaning a crutch or staff. In