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Hello everybody, we are going to review Unit 5, Prehistory in Social Science.

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You know that history is divided into different periods.

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What periods are those?

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Prehistory is the first one.

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It started when the first humans appeared.

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And it finished when they discovered how to write.

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So, afterwards, the ancient history came.

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And during this period, the Greeks and the Romans lived.

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When did it finish? It finished when the Roman Empire fell. After this period we have the Middle

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Ages. Remember that in Spain we had in the north of it the Christian kingdoms and in the south of

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Spain the Muslims called this area Al-Andalus. They had a fight and it was called the Reconquista

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and it was the end of the Middle Ages, also when Christopher Columbus discovered America. After

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this period the early modern age came and during this period there were many

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explorers remember they traveled by boat they use a compass and they use maps to

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find new places and it finished when the French Revolution happened the last

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period is the modern age and it was divided into the 19th and the 20th

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century. During the 19th century, they moved from the countryside to the city and they worked in factories.

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And during the 20th century, remember that they had more entertainment.

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They could go to the doctor and they could go to school.

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Most people could go to school. So this is a quick revision of the periods of history.