Parentheses in domain mean exclude, square brackets mean including If you have infinity or negative infinity, the corresponding sign needs to be parentheses. A number from 1 to infinity not including 1 would be written as (1, *insert infinity*) Including 1 [1, *insert infinity*)
Intro - History & Timeline. Verizon Communications was created on June 30, 2000 by Bell Atlantic Corp. and GTE Corp., in one of the largest mergers in U.S. business history. GTE and Bell Atlantic evolved and grew through decades of mergers, acquisitions and divestitures.
However, the history of mobile phones goes back to 1908 when a US Patent was issued in Kentucky for a wireless telephone. Mobile phones were invented as early as the 1940s when engineers working at AT&T developed cells for mobile phone base stations. The very first mobile phones were not really mobile phones at all. They were two-way radios that allowed people like taxi drivers and the emergency services to communicate.