<p>Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland. His mother was nearly deaf, and his father taught elocution to the deaf, an influence that would shape the entire course of Bell's life and career. He left school at age 15 without graduating and spent his early years moving between Scotland and England before his family immigrated to Canada in 1870 following the deaths of his two brothers from tuberculosis. In April 1871, Bell moved to Boston, where he began teaching at the Boston School for Deaf Mutes as well as at the Clarke School for the Deaf and the American School for the Deaf.</p>
<p>While pursuing his teaching career, Bell began researching methods to transmit multiple telegraph messages simultaneously over a single wire. That work led him to a far more ambitious idea: transmitting the human voice. He filed a patent describing his method of transmitting sounds on February 14, 1876, just hours before a rival inventor filed a similar concept. On March 7, 1876, the Patent Office awarded Bell what is widely regarded as one of the most valuable patents in history. Three days later, he produced the first intelligible speech transmission, summoning his assistant Thomas Watson with the words: "Mr. Watson, come here. I want to see you." The Bell Telephone Company was established in July 1877 to commercialize the invention.</p>
<p>Bell's contributions extended well beyond the telephone. He refined the phonograph, developing a commercially viable design that was patented in 1886 and eventually evolved into the Columbia Phonograph Company. He developed an electrical bullet probe, an early metal detector used to locate bullets in wounded soldiers, credited with saving lives during the Boer War and World War I. He founded the Aerial Experiment Association in 1907, contributing to early aviation research, and served as president of the National Geographic Society from 1898 to 1903. He became an American citizen in 1882 and remained one of the most prolific and consequential inventors in the history of the United States.</p>
<h3>References</h3>
<p>Stark, Wayne Eric, Lehnert, James S., Borth, David E.. "telecommunication". <em>Encyclopedia Britannica</em>, 1 May. 2026, <a href="https://www.britannica.com/technology/telecommunication" target="_blank" rel="noopener noreferrer">https://www.britannica.com/technology/telecommunication</a>.</p>