According to the two migration theories, how might people have settled the Americas?

From 1932 to the 1990s, it was thought the first human migration to the Americas actually took place around 13,500 years ago, based on spear points discovered near Clovis, New Mexico. You may have heard of this referred to as the "Clovis-First Model." Over the last 20 years however, the discourse surrounding the story of the first Americans has come into a new light -- one that challenges the previously accepted theories and replaces them with even more shocking and exciting ones.

With these new ideas, the question regarding the story of the first Americans needed to be asked again: if those proverbial first Americans didn't populate the continent over the Bering Land Bridge, who were they, where did they come from and when, and how did they get here? It began in 1997 with the discovery of an archaeological site in Monte Verde, Chile, dating back to 14,500 years ago - a full millennium older than what was previously thought to be the first people in the new world, and indicating they settled much further south than expected.

Although there was strong debate regarding the dating of the Monte Verde findings, it brought up an interesting question: if humans settled in the Americas so much earlier than previously thought and traveled as far as South America, is it possible that these humans journeyed to the new world through a different route?

One radical theory claims it is possible that the first Americans didn't cross the Bering Land Bridge at all and didn't travel by foot, but rather by boat across the Atlantic Ocean. Though the evidence for this theory is minimal, proponents argue that the artifacts were developed by an earlier and still more ancient European group, known as the Solutrean culture. This style bears an uncanny resemblance to that of the Clovis tools found in the United States, which could suggest that humans may have entered America from the east over a route that has been dubbed the Atlantic Maritime route.

A somewhat more widely accepted maritime theory looks to modern cultural anthropology and linguistics, claiming a striking resemblance between the cultures of Australia, Southeast Asia, and South America. Support for this idea is found partially in the discovery of a 9,500 year old skeleton in Washington State. Dubbed the "Kennewick Man," the skeleton bears a strong physical resemblance to the Japanese Ainu people, suggesting that a pan-Pacific journey via boat might have brought the first Americans to our shores.

Explanation:

the years following the end of world war i were a period of deep social tensions, aggrevated by high wartime inflation. food prices more than doubled between 1915 and 1920; clothing costs more than tripled. a steel strike that began in chicago in 1919 became much more than a simple dispute between labor and management. the steel strike of 1919 became the focal point for profound social anxieties, especially fears of bolshevism.

organized labor had grown in strength during the course of the war. many unions won recognition and the 12-hour workday was abolished. an 8-hour days was instituted on war contract work and by 1919, half the country's workers had a 48-hour work week.

the war's end, however, was accompanied by labor turmoil, as labor demanded union recognition, shorter hours, and raises exceeding the inflation rate. over 4 million workers--one fifth of the nation's workforce--participated in strikes in 1919, including 365,000 steelworkers and 400,000 miners. the number of striking workers would not be matched until the depression year of 1937.

the year began with a general strike in seattle. police offers in boston went on strike, touching off several days of rioting and crime. but the most tumultuous strike took place in the steel industry. then some 350,000 steelworkers in 24 separate craft union went on strike as part of a drive by the american federation of labor to unionize the industry. from management's perspective, the steel strike represented the handiwork of radicals and professional labor agitators. the steel industry's leaders regarded the strike as a radical conspiracy to get the company to pay a 12-hour wage for eight hours' work. at a time when communists were seizing power in hungary and were staging a revolt in germany, and workers in italy were seizing factories, some industrialists feared that the steel strike was the first step toward overturning the industrial system.

the strike ended with the complete defeat of the unions. from labor's perspective, the corporations had triumphed through espionage, blacklists, and the denial of freedom of speech and assembly and through the complete unwillingness to recognize the right of collective bargaining with the workers' representatives.

during the 1920s, many of labor's gains during world war i and the progressive era were rolled back. membership in labor unions fell from 5 million to 3 million. the us supreme court outlawed picketing, overturned national child labor laws, and abolished minimum wage laws for women.

the railroad administration