Locust Plague of 1874
... that trains lost traction during the Locust Plague of 1874 in the United States due to the tracks being "slick with grasshopper guts"?
... that trains lost traction during the <b id="mwBA4"><a href="./Locust_Plague_of_1874" id="mwBA8" rel="mw:WikiLink" title="Locust Plague of 1874">Locust Plague of 1874</a></b> in the United States due to the tracks being "slick with grasshopper guts"?