British Army uniform and equipment in World War I It contained an inner can of explosive with an outer can of metal fragments or ball bearings. The fuses that were developed for the Jam Tin Grenade were activated by friction or a by lighted taper which was often replaced by a lighted cigarette. This was followed by the highly successful Mills bomb in 1915. It was oval in shape to fit into a clenched fist and time fused. The detonator was activated by a spring driven firing pin which was restrained by a lever that in turn was locked by a safety pin. The Mills bomb was a defensive
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