n the 1870s, life in the American West changed dramatically [1] however, at the time there was disagreement about the value of the change. Previously, fencing had used only single strands of wire that [2] cattle could lean against and break. Barbed wire, the new change agent, consisted of two wires [3] twisted together with a barb inserted every few inches. The double strand was stronger [4] and the barb simply suggested to the cow that leaning on the fence was not allowed.



How many semicolons should be placed?