Across
- 3. an object made by humans in the past, often of historical interest.
- 5. a group of people born and living around the same time.
- 6. the study of past events, people, and periods of time.
Down
- 1. a line that shows the order in which past events happened.
- 2. to keep something safe or in its original state.
- 4. a period of one hundred years.