Science and invention in Birmingham pen nibs per week. 1915: William Mills develops the first "safe grenade" meaning it is safe for the soldier throwing it rather than his opponent. It is named the Mills bomb, and is adopted by the British Army as its standard hand grenade in 1915. 75,000,000 grenades are supplied during The Great War. 1918: Much work is carried out by Oliver Lucas's company on the design and improvement of the military search light, he also designs a signalling lamp after experiences at the Somme and the design is later used by the British Army. 1920: Charles Henry Foyle invents the
Theatre in Birmingham close the Hippodrome in 1961 and 1970, but in 1979 sold it to the City Council who in turn leased it to a charitable trust. The Hippodrome's fortunes gradually revived, and by the early 21st century it was selling more tickets than any other single theatre in the country. By the 1980s Birmingham had only three large-scale professional theares, though this was still – jointly with Manchester – the highest number of any English city outside London. During the 70s, mac, then known as the Midlands Arts Centre for Young People had its own professional puppet theatre and resident theatre