The Ashes is a Test cricket series, played between England and Australia. It is one of international cricket's most celebrated rivalries and dates back to 1882. It is currently played biennially, alternately in England and Australia. However, since cricket is a summer game, the venues being in opposite hemispheres means the break between series alternates between 18 and 30 months. A series of "The Ashes" now comprises five Test matches, two innings per match, under the regular rules for international Test-match cricket. If a series is drawn then the country already holding the Ashes retains them.