In 1876, Alexander Graham Bell invented the telephone. Gardiner Hubbard, and Thomas Sanders created the Bell Telephone Company. AT&T, also known as Ma Bell, subsided with that company in 1855 to build and operate a long distance telephone network. Later on in 1899, AT&T became the head part of the Bell Telephone Company. In the 1970s, the company became the largest company in the world and had about one million employees. However, in 1984, the Justice Department brought the civil antitrust suit and AT&T was split into seven parts called Baby Bells. The dispute ended in 1956, and AT&T stayed as a communication service while the others split into different ones. They deliver mobile services, high-speed internet, and solutions for people and