Since farmers started to domesticate livestock, we have been continually looking for better materials to keep livestock where we want. We’ve come a long way. Up to the mid-1800s, stone or split rail fences kept most livestock within a confined area. In 1864, barbed wire came to the farm and resulted in improved confinement. But regardless of what method was used to confine swine, materials have always seemed to lose the test of time against the ever-patient hog.