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
Term limits in the United States A total of 8 presidents served two full terms and declined a third and three presidents served one full term and refused a second. After World War II, however, an officeholder class had developed to the point that congressional tenure rivaled that of the U.S. Supreme Court, where tenure is for life. "Homesteading," or securing a lifelong career in Congress, was made possible by reelection rates that approached 100% by the end of the 20th century. The concept of homesteading brought about a popular movement known as the "term-limits movement". The elections of 1990–94 saw the adoption of term limits