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.
This freedom of movement made the device much more useful than the first mobile phone. Cellular technology was invented by Joel Engel and Richard Frenkiel, two researchers for AT&T Labs, in 1983. They introduced the cellular concept of replacing large broadcast towers, with smaller low powered towers.