Historic events

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Across
  1. 1. a destructive event caused by nature, such as an earthquake, flood, or hurricane
  2. 3. an organized process in which people vote to choose a leader or representative
  3. 5. a violent action intended to create fear for political or ideological purposes
  4. 6. the act of finding or learning about something for the first time
  5. 7. a situation in which a disease spreads quickly and affects many people
  6. 8. a major and often sudden change in a country, society, or system
Down
  1. 2. the deliberate killing of an important or famous person
  2. 4. something important or difficult that you succeed in doing