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People used live in caves or in tents made of mammoth skins
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Poor people live in one room huts
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People in Greece live in houses of brick and plaster
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In Rome, rich people live with mosaics on their walls
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people have glass windows
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Rich and even porr people have chimneys
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Houses in industrial towns are dreadful and back to back
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Flushing toilets and electric light are common
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Now, due to the bigger number of people, we have narrower spaces.
