William Mills (inventor) William Mills (inventor) Sir William Mills (24 April 1856 - 1932) of Sunderland was an English engineer, who invented the Mills bomb which was developed and manufactured at his factory in Birmingham, England. The Mills bomb was the hand grenade most widely used by British and Imperial forces during the First World War. He was knighted in 1922. William Mills was born on 26 April 1856 in Wear Street, Southwick, Sunderland. He was the son of David Mills, a shipbuilder, and his wife Sarah Ann Kirkaldy. The Sunderland historian James Watson Corder recorded that David Mills had an interest in
Telephone numbers in Brazil first years, then eight digits became the standard for several years. The last area code to convert fully from seven to eight digits was "61" (comprising the national capital city, Brasília, and neighbouring areas), in 2005. However, the popularity of multiple-SIM mobile phones in Brazil makes the country have more active mobile lines than inhabitants (as of November 2016, 248 million vs. 206 million), and by 2010 the country's most populous and economically important area code, "11" of metropolitan São Paulo (an area where over 20 million people live), was getting close to exhausting its available mobile numbers. Overlays and