Most would consider railroads as the decline of cattle drives, but more importantly barbed wire or "Devil's wire" and the advent of Fencing off property was the culprit. People thought they needed it to protect their cattle or for farmers to protect their crops against free-roaming cattle, but it destroyed the concept of open ranges and the ability to graze cattle freely across an un-fenced landscape.
The availability of barbed wire was a major factor in limiting the open range system.
the fence
First of all, it's demise. Here's a sentence: The demise of the floppy disk was the invention of the CD.
The Invention of the Telegraph by Joseph Henry in 1831 led to the invention of the phone.
CD's
The hydrophone :)
The Walkman led to the invention of the iPod.
Slavery
The steam engine
Knighthoods are very much alive and awarded.
A caveman.
The Wright brothers' invention of the airplane led to advancements in air transportation.
Exactly that...that one invention leads to another invention. For example. The invention of the car, led to the invention of the assembly line
SBD (silver bullet disease)