Biometrika was established in 1901 by Francis Galton, Karl Pearson, and Raphael Weldon to promote the study of biometrics. The history of Biometrika is covered by Cox. The name of the journal was chosen by Pearson, but Francis Edgeworth insisted that it be spelt with a "k" and not a "c". Since the 1930s, it has been a journal for statistical theory and methodology. Galton's role in the journal was essentially that of a patron and the journal was run by Pearson and Weldon and after Weldon's death in 1906 by Pearson alone until he died in 1936. In the early days, the American biologists Charles Davenport and Raymond Pearl were nominally involved but they dropped out. On Pearson's death his son Egon Pearson became editor and remained in this position until 1966. David Cox was editor for the next 25 years. So, in its first 65 years Biometrika had effectively a total of just three editors, and in its first 90 years only four. Other people who were deeply involved in the journal included William Palin Elderton, an associate of Pearson's who published several articles in the early days and in 1935 became chairman of the Biometrika Trust. In the very first issue, the editors presented a clear statement of purpose:
It is intended that Biometrika shall serve as a means not only of collecting or publishing under one title biological data of a kind not systematically collected or published elsewhere in any other periodical, but also of spreading a knowledge of such statistical theory as may be requisite for their scientific treatment.
Early volumes contained many reports on biological topics, but over the twentieth century, Biometrika became a "journal of statistics in which emphasis is placed on papers containing original theoretical contributions of direct or potential value in applications." Thus, of the five types of contents envisaged by its founders, only the second and to a lesser extent the third remain, largely shorn of their biological roots. In his centenary tribute to Karl Pearson, J. B. S. Haldane likened him to Columbus who "set out for China, and discovered America." The same might be said of Pearson's journal.
Historical reference
To mark the centenary of "one of the world's leading academic journals in statistical theory and methodology" a commemorative volume was produced, containing articles that had appeared in a special issue of the journal and a selection of classic papers published in the journal in the years 1939–1971.