the United States 
Army, and recruited by the daily immigrant ship, moves forward at a 
swifter pace and in a different way than the frontier reached by the 
birch canoe or the pack horse. The geologist traces patiently the shores 
of ancient seas, maps their areas, and compares the older and the newer. 
It would be a work worth the historian's labors to mark these various 
frontiers and in detail compare one with another. Not only would there 
result a more adequate conception of American development and 
characteristics, but invaluable additions would be made to the history 
of society. 
Loria,[11:1] the Italian economist, has urged the study of colonial life 
as an aid in understanding the stages of European development,
affirming that colonial settlement is for economic science what the 
mountain is for geology, bringing to light primitive stratifications. 
"America," he says, "has the key to the historical enigma which Europe 
has sought for centuries in vain, and the land which has no history 
reveals luminously the course of universal history." There is much truth 
in this. The United States lies like a huge page in the history of society. 
Line by line as we read this continental page from West to East we find 
the record of social evolution. It begins with the Indian and the hunter; 
it goes on to tell of the disintegration of savagery by the entrance of the 
trader, the pathfinder of civilization; we read the annals of the pastoral 
stage in ranch life; the exploitation of the soil by the raising of 
unrotated crops of corn and wheat in sparsely settled farming 
communities; the intensive culture of the denser farm settlement; and 
finally the manufacturing organization with city and factory 
system.[11:2] This page is familiar to the student of census statistics, 
but how little of it has been used by our historians. Particularly in 
eastern States this page is a palimpsest. What is now a manufacturing 
State was in an earlier decade an area of intensive farming. Earlier yet 
it had been a wheat area, and still earlier the "range" had attracted the 
cattle-herder. Thus Wisconsin, now developing manufacture, is a State 
with varied agricultural interests. But earlier it was given over to almost 
exclusive grain-raising, like North Dakota at the present time. 
Each of these areas has had an influence in our economic and political 
history; the evolution of each into a higher stage has worked political 
transformations. But what constitutional historian has made any 
adequate attempt to interpret political facts by the light of these social 
areas and changes?[12:1] 
The Atlantic frontier was compounded of fisherman, fur-trader, miner, 
cattle-raiser, and farmer. Excepting the fisherman, each type of industry 
was on the march toward the West, impelled by an irresistible attraction. 
Each passed in successive waves across the continent. Stand at 
Cumberland Gap and watch the procession of civilization, marching 
single file--the buffalo following the trail to the salt springs, the Indian, 
the fur-trader and hunter, the cattle-raiser, the pioneer farmer--and the 
frontier has passed by. Stand at South Pass in the Rockies a century
later and see the same procession with wider intervals between. The 
unequal rate of advance compels us to distinguish the frontier into the 
trader's frontier, the rancher's frontier, or the miner's frontier, and the 
farmer's frontier. When the mines and the cow pens were still near the 
fall line the traders' pack trains were tinkling across the Alleghanies, 
and the French on the Great Lakes were fortifying their posts, alarmed 
by the British trader's birch canoe. When the trappers scaled the 
Rockies, the farmer was still near the mouth of the Missouri. 
Why was it that the Indian trader passed so rapidly across the continent? 
What effects followed from the trader's frontier? The trade was coeval 
with American discovery. The Norsemen, Vespuccius, Verrazani, 
Hudson, John Smith, all trafficked for furs. The Plymouth pilgrims 
settled in Indian cornfields, and their first return cargo was of beaver 
and lumber. The records of the various New England colonies show 
how steadily exploration was carried into the wilderness by this trade. 
What is true for New England is, as would be expected, even plainer 
for the rest of the colonies. All along the coast from Maine to Georgia 
the Indian trade opened up the river courses. Steadily the trader passed 
westward, utilizing the older lines of French trade. The Ohio, the Great 
Lakes, the Mississippi, the Missouri, and the Platte, the lines of western 
advance, were ascended by traders. They found the passes in the Rocky 
Mountains and guided Lewis and Clark,[13:1] Frémont, and Bidwell. 
The explanation of the rapidity of this advance is connected with the 
effects of the trader on the Indian. The trading post left the unarmed 
tribes at the mercy of those that had purchased fire-arms--a truth which 
the Iroquois    
    
		
	
	
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