On History Channel 2 there is an amazing show called Big History. They have a new concept that history is not just a liner line of events that effect the human race. History is a web of events that connects us to our beginnings and space. One episode that caught my fancy is about Salt.  We (all life) need salt to survive… period. Roads are actually built because we followed animals (that we hunt) to nautral salt beds. Amazing! We can also thank horses for the creation of pants. I love this show!