Variations in published cricket statistics have come about because there is no official view of the status of cricket matches played in Great Britain prior to 1895 or in the rest of the world prior to 1947. As a result, historians and statisticians have compiled differing lists of matches that they recognise as (unofficially) first-class. The problem is significant where it touches on some of the sport's first-class records, especially in regards to the playing career of W. G. Grace. Concept and definition of first-class cricket The concept of a "first-class standard" was formalised in May 1894 at a meeting of the Marylebone Cricket Club (MCC) committee and the secretaries of the 14 clubs in the official County Championship, which had begun in 1890. As a result, these 14 clubs became officially first-class from 1895 along with MCC, Cambridge University, Oxford University, the main international touring teams and other teams designated as such by MCC (e.g., North v South, Gentlemen v Players, occasional XIs, etc). First-class cricket was formally defined by the then Imperial Cricket Conference (ICC) in May 1947 as a match of three or more days' duration between two sides of eleven players officially adjudged first-class, with the governing body in each country to decide the status of teams. Significantly, it was stated that the definition does not have retrospective effect. The absence of any ruling about matches played prior to 1947 (or prior to 1895 in Great Britain) has caused problems for cricket historians and especially statisticians. Matches that are believed to have met the official definitions, assuming they featured teams of the necessary high standard, have been recorded since 1697 (having been in vogue since the 1660s). It was inevitable that historians and statisticians would seek to apply unofficial first-class status retrospectively, despite the ICC and MCC's directives. The position is that each writer must compile their own list based on personal opinion: as a result, significant differences may be observed in published statistical records, with particular impact on the career records of W. G. Grace, Jack Hobbs and Herbert Sutcliffe. There are also differences in the perceived status of certain matches played by Gloucestershire teams before the county club was formed in 1870, and by Somerset in 1879 and 1881. One of the problems here is that statisticians have tended not to publish their match lists with their findings: it should, however, be noted that