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FIRST PERIOD 450 -1066
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Second period 1066 - 1500
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Third period 1500 - 1660
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Fourth period
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Fifth period 1660-1700
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Sixth period 1700 . 1798
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Seventh period 1798 - 1837
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Eighth Period 1837 - 1901
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Ninth period 1901 - 1940
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Tenth period 1940 - 2000
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Eleventh period 1945 to present
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First part
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Second part