Mittwoch aus Licht Mittwoch aus Licht The four component scenes were separately commissioned and premiered: The staged premiere of "Mittwoch" was given by the Birmingham Opera Company on what would have been the composer's 84th birthday, Wednesday 22 August 2012 at the Argyle Works, a former factory in Digbeth, Birmingham, as part of the London 2012 Festival, with further performances on 23, 24, and 25 August (; ; ). The director was Graham Vick, music director Kathinka Pasveer, designer Paul Brown, lighting Giuseppe di Iorio, and choreography Ron Howell. The production went on to win the 2012 Royal Philharmonic Society Award for Opera
Eight-day week popularity of the seven-day rhythm won and the eight-day week disappeared. The cycle of seven days, named after the sun, the moon, and the five planets visible to the naked eye, was already customary in the time of Justin Martyr, who wrote of the Christians meeting on the Day of the Sun (Sunday). Emperor Constantine eventually established the seven-day week in the Roman calendar in AD 321. The Celts used periods of darkness such as night and winter to begin their calculations of time. This meant that the first period of time in a "week" was a night, followed by