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| a device invented by Samuel Morse in 1844 that sent electrical signals along a wire |
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| 1829 a steam powered engine that pulled rail cars |
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| a new type of ship that had tall masts and huge sails which made shipping time much faster |
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| a severe food shortage in 1840 Ireland suffered a potato famine which caused over 1.5 million Irish to come to the us |
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| Americans who wanted to preserve the country for native born whites |
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| policy or attitude that denies equal rights to concern groups of people |
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| political party formed by the native in the 1850's name came from the members's saying 'i know nothing' when asked about their party |
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| large area of cotton plantations from South Carolina to Texas |
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| small number of wealthy families whose views and ways of life dominated the south |
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| laws passed in the south to keep slaves from running away or rebelling |
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| a network of people who secretly helped slaves run away and retch freedom in the northern states or Canada |
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