"Scattered across Nebraska are markers of the state's heritage. Many are in spots more remote than the Point of Beginning marker. When most of these were erected in the 1910s through the early 1930s, Nebraska had more people in rural areas; after the depression of the 1930s, there was a vast migration from farms to the cities. After a century, most Nebraskans and travelers are not aware of the touchstones to their history on the byways of the state....