It in turn has many branches, each of which is considered a social science. The main social sciences include economics, political science, human geography, demography, psychology and sociology.
Teams in Test cricket, first-class cricket and club cricket wear traditional white uniforms and use red cricket balls. Cricket is a multi-faceted sport with multiple formats that can effectively be divided into first-class cricket, limited overs cricket and, historically, single wicket cricket.
In the late 1970s, Kerry Packer established the rival World Series Cricket competition, and it introduced many of the features of One Day International cricket that are now commonplace, including coloured uniforms, matches played at night under floodlights with a white ball and dark sight screens, and, for television broadcasts, multiple camera angles, effects microphones to capture sounds from the players on the pitch, and on-screen graphics.