Questions: 1. Explain what a historical era is.
2. Compare and contrast artifacts and fossils.
3. Use one example to explain how the past influences daily life today.
4. Describe different ways that historians measure time.
5. How do historians learn about people who lived in the earliest historical eras?

1. A historical era is a specific time frame historians have classified due to commonalities within that time frame

2. Fossils are the remains of living things and not of things that were made. Artifacts are the remains of things that were made, not the remains of living things. They both are really old an ancient.

3. Colonization of the Americas by the European led to extermination of entire populations like the American Indians. It also led to foundation of modern nations on the continents such as USA, Canada, Mexico and others.

4. B.C.E is one example that historians used to track time. B.C.E means before common era or before Christ existed.

5. Historians learn through primary and secondary sources. Although primary sources are more accurate, secondary sources help bring new ideas into the primary source that many may miss

i don't know why don't you google it?