<Li> 25 June 1876 : Bell exhibits his telephone at the Centennial Exposition in Philadelphia , where it draws enthusiastic reactions from Emperor Dom Pedro II of Brazil and Lord Kelvin , attracting the attention of the press and resulting in the first announcements of the invention to the general public . </Li>
<Li> 25 June 1876 : Bell exhibits his telephone at the Centennial Exposition in Philadelphia , where it draws enthusiastic reactions from Emperor Dom Pedro II of Brazil and Lord Kelvin , attracting the attention of the press and resulting in the first announcements of the invention to the general public . </Li>
when was the telephone released to the public
when was the telephone released to the public
25 June 1876
25 June 1876