Periods of time

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Across
  1. 3. We live in that Age now
  2. 6. A prehistoric period when weapons and tools came to be made of metal
  3. 7. That age followed after Stone age
  4. 9. Primitive people used it to make weapons and household items
  5. 10. People create it in Modern Age so we can chat online now
Down
  1. 1. The house of primitive people
  2. 2. Primitive people used that parts of animals to make weapons and household items
  3. 4. The study of past events
  4. 5. A man who served his lord as a soldier in armour in the Middle Ages
  5. 8. The ancient past, especially the period of classical and other human civilizations before the Middle Ages