Nebraska invented the 911 system and first used 911 service. submitted by. Marissa
Moe Brik
An emergency response system lets one call for help in an emergency by simply pushing a button. An emergency response system can be purchased at Optics Planet and Comfort First.
Montgomery, Alabama
The first mechanical cooling system was invented by Dr. John Gorrie. -Qwasas
Charles Linneaus invented the actual classification system.
James and Laura Sweet of Pritchard, Alabama were the first people to invent the trailer and the mobile home. This was invented in the 1970's.
Citizen
i invented
Babylonians
the Romans
The world's first Electric Trolley System was introduced in Montgomery in 1886.