of the west in search of the American character. The history of Kansas, argued historian Carl L. Becker a century ago, reflects American ideals. He wrote: "The Kansas spirit is the American spirit double distilled. It is a new grafted product of American individualism, American idealism, American intolerance. Kansas is America in microcosm." Scholars have compared the emergence of democracy in America with other countries, regarding the frontier experience. Selwyn Troen has made the comparison with Israel. The American frontiersmen relied on individual effort, in the context of very large quantities of unsettled land with weak external enemies. Israel by contrast, operated in a very small geographical zone, surrounded by more powerful neighbors. The Jewish pioneer was not building an individual or family enterprise, but was a conscious participant in nation-building, with a high priority on collective and cooperative planned settlements. The Israeli pioneers brought in American experts on irrigation and agriculture to provide technical advice. However, they rejected the American frontier model in favor of a European model that supported their political and security concerns. Urban frontier The cities played an essential role in the development of the frontier, as transportation hubs, financial and communications centers, and providers of merchandise, services, and entertainment. As the railroads pushed westward into the unsettled territory after 1860, they build service towns to handle the needs of railroad construction crews, train crews, and passengers who ate meals at scheduled stops. In most of the South, there were very few cities of any size for miles around, and this pattern held for Texas as well, so railroads did not arrive until the 1880s. They then shipped the cattle out and cattle drives became short-distance affairs. However, the passenger trains were often the targets of armed gangs. Denver's economy before 1870 had been rooted in mining; it then grew by expanding its role in railroads, wholesale trade, manufacturing, food processing, and servicing the growing agricultural and ranching hinterland. Between 1870 and 1890, manufacturing output soared from $600,000 to $40 million, and the population grew by a factor of 20 times to 107,000. Denver had always attracted miners, workers, whores, and travelers. Saloons and gambling dens sprung up overnight. The city fathers boasted of its fine theaters, and especially the Tabor Grand Opera House built in 1881. By 1890, Denver had grown to be the 26th largest city in America, and the fifth-largest city west of