The answer is they "refused to ratify".
The League of Nations charter became part of the Treaty of Versailles following World War I. President Woodrow Wilson pushed hard for its passing, to the point that he earned the 1919 Nobel Peace Prize. However, when he brought the charter to the U.S. Congress, the members refused to ratify it. Thus, the international organization promoted by President Wilson never became a part of American politics.
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Haymarket, Homestead, and Pullman were all violent labor strikes.
The Homestead Strike occurred in 1892 in Homestead PA and was a violent battle between laborers and hired Pinkertons after a lockout.
The Haymarket Affair occurred in Chicago in 1896 and involved a violent labor protest and a bombing.
The Pullman Strike occurred in 1894 and was a nationwide violent railroad strike.
The religious upheavals consequences of the sixteenth and seventeenth centuries had very big impact on the people's live in Europe. Numerous conflicts emerged between the Catholics and Protestants, and that resulted in persecution, forced migration, lot of death. The Catholic Church was losing its power in multiple countries, and the Protestants were gaining more power, becoming dominant in those same countries. The tensions in Europe because of the religion led to migration of religious groups to the New World. The reason for migration toward the New World was that the church didn't really had any significant power there, and also there was plenty of space for creating communities, thus leave in peace and without fear.