...奴及反蓄奴上的矛盾暂时得以缓和，为美国争取到了30多年的缓冲期，但1854年的“堪萨斯-内布拉斯加法案”（Kansas-Nebraska Act）重新激化了双方的矛盾。
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At the fair of 1854, Senator Douglas of Illinois gave a rousing two-and-a-half-hour speech in favour of the Kansas-Nebraska Act, which allowed for the spread of slavery to new states and territories.
ECONOMIST: State fairs
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