Timeline and Sources of History — Class 6 Social Science
1. About This Chapter
History is a conversation between the present and the past. Chapter 4 teaches students how historians measure time (eras, centuries, millenniums), what sources they use (objects, documents, oral traditions), and who helps uncover the past (archaeologists, anthropologists). It traces humanity's journey from hunter-gatherers to early agricultural settlements.
2. Measuring Historical Time
How Historians Measure Time:
- Era: A distinct period marked by an important event (e.g., Common Era/CE begins with the birth of Jesus Christ)
- Century: 100 years (we are in the 21st century, which started in 2001)
- Millennium: 1,000 years (we are in the 3rd millennium CE)
- Timelines: Visual tools showing sequence of events
The Gregorian Calendar:
The calendar most widely used today, starting from the birth of Jesus Christ (Year 1 CE). BCE = Before Common Era. We now use CE (Common Era) instead of AD.
3. Sources of History
Historians are like detectives — piecing together clues:
Types of Sources:
- Objects/Artefacts: Tools, coins, pottery, ornaments
- Written Documents: Old books, inscriptions on stone/metal
- Oral Traditions: Stories passed down through generations
Sometimes sources are clear; other times they're incomplete or confusing — the historian must interpret carefully.
4. Experts Who Study the Past
| Expert | What They Study |
|---|---|
| Archaeologist | Digs up ancient remains — tools, pottery, bones |
| Anthropologist | Studies human societies and cultures |
| Epigraphist | Studies ancient inscriptions and writings |
| Paleontologist | Studies fossils of ancient life forms |
Together, these experts help historians piece together human history.
5. Early Humans
Modern humans have existed about 300,000 years — a tiny fraction of Earth's 4.5-billion-year history. Early humans:
- Lived in groups as hunter-gatherers
- Used simple tools and fire
- Created rock paintings showing daily life
- Had beliefs about nature and the afterlife
- Made ornaments and exchanged goods
6. Agriculture and Settlements
After the last Ice Age, climate change enabled:
- Agriculture: Growing crops, domesticating animals
- Settlements: Living near rivers with fertile soil
- New technologies: Pottery, metalworking
- Villages → Towns → Cities: Laying the foundation for civilization
7. Key Concepts Summary
| Concept | Description |
|---|---|
| CE/BCE | Common Era / Before Common Era |
| Century | 100 years |
| Artefact | Object made by humans (tool, pottery) |
| Archaeology | Study of past through material remains |
| Hunter-Gatherer | Early human who hunted animals and gathered plants |
8. Worked Questions
Q: What is the difference between archaeologists and historians? Archaeologists dig up and study physical remains (tools, buildings, bones). Historians use these findings along with written documents and oral traditions to construct narratives about the past.
Q: How did agriculture change human life? Agriculture meant reliable food supply. People settled near rivers, built permanent homes, and formed larger communities. This led to villages, towns, specialized crafts, and eventually cities.
9. Conclusion
Timeline and Sources of History introduces students to the tools and methods of historical study. Just as a detective pieces together clues to solve a mystery, historians use artefacts, documents, and expert knowledge to reconstruct humanity's fascinating journey.
