美利坚民族：美国历史：迫近的危机

he American Nation：A History of the United States：The Coming Crisis

1850年时的美国 经过半个世纪的急速发展和变化，与1800年时的共和国相比，1850年时的美国已大不相同。地理的扩张，人口的增长，经济的发展，以及市场革命造成的种种变化，转变了这个正在苦斗中的新同家。经济上、文化上和政治上．美国人已经形成强烈的民族认同感。

America in 1850 In 1850, after half a century of rapid growth and change, America was a different nation from the republic of 1800. Geographic expansion, population increase, economic development, and the changes wrought by the market revolution had transformed the struggling new nation. Economically, culturally, and politically, Americans had forged a strong sense of national identity.