PW Class 6 Social Science Notes Chapter 4: Timelines and Sources of History

History helps us understand how people, societies, and ways of life changed over time. To study the past, historians arrange events chronologically and examine different kinds of evidence left behind by earlier societies.

The PW Class 6 Social Science Notes for Timelines and Sources of History cover how time is measured in history, the use of timelines, different experts who study the past, historical sources, and the beginnings of human history. The chapter also traces the changes that took place as early humans moved from hunting and gathering towards farming and settled communities.

How Do We Learn About the Past?

The Earth has a vast history, and humans form only a small part of it. Different experts examine physical remains, fossils, cultures, and other evidence to understand both the Earth’s past and human history.

The images on page 1 of the notes also show these four experts at work, helping students distinguish between their roles visually.

How Is Time Measured in History?

Different societies and cultures have developed their own ways of measuring time, often marking eras around major events, important figures, or the reign of a ruler.

The Gregorian calendar is commonly used around the world, while Hindu, Muslim, Jewish, and Chinese calendars are also used, including for festivals.

The chapter uses two important terms for organising historical dates:

• CE (Common Era): The birth of Jesus Christ marks the starting point of the Common Era.

• BCE (Before Common Era): Years before the beginning of the Common Era are referred to as BCE.

Timelines help arrange historical events in sequence and make it easier to understand which events happened earlier or later.

What Does a Historical Timeline Show?

A timeline presents events in chronological order. This allows students to see the sequence of developments across long periods of history.

The timelines on page 2 of the notes begin as far back as 300,000 BCE and mark developments such as early rock art, the Ice Age, the beginning of settlements and agriculture, pottery technology, copper metallurgy, the Indus-Sarasvati Civilisation, and later historical figures and periods.

What Are the Sources of History?

Historians use different sources to gather information about events, people, and objects from the past. Sources may support or contradict one another, so historians have to determine which evidence is more reliable.

The chapter refers to several sources and fields used to reconstruct history, including:

• Archaeological remains

• Literature

• Inscriptions

• Oral traditions

• Coins

• Monuments

• Newspapers and electronic media for more recent history

Archaeologists, epigraphists, anthropologists, literature experts, and scientists can all contribute to understanding the past. Modern scientific methods, including climate analysis, chemical tests, and genetic research, can provide additional information.

What Was Life Like for Early Humans?

Modern humans, or Homo sapiens, have existed for approximately 300,000 years. Early humans generally lived in bands and depended mainly on hunting and gathering for survival.

They stayed in temporary camps, rock shelters, and caves. They used fire and made tools such as stone axes, blades, and arrowheads. Communication took place through languages that are now lost.

Rock paintings provide evidence of their lives and experiences through simple symbols as well as more detailed scenes. Early humans also made ornaments from stones and shells and sometimes exchanged items with other groups.

How Did Farming and Settled Life Begin?

The Earth’s climate has changed considerably over time. During Ice Ages, large parts of the planet were covered in ice. According to the chapter, the last Ice Age lasted from more than 100,000 years ago to about 12,000 years ago.

As the climate became warmer, humans began settling down and cultivating cereals and grains. They also domesticated animals such as cattle and goats.

Many settlements developed near rivers because fertile soil and access to water made growing crops easier. As communities became larger, leaders or chieftains began overseeing the well-being of the people. Land was collectively owned, with members working for the benefit of the community.

How Did Early Villages and Technology Develop?

Settled life brought changes beyond agriculture. Villages expanded, and communities began exchanging goods such as food, clothing, and tools, creating networks of communication.

Technologies such as pottery and metalworking also emerged. Copper was used first, followed later by iron. These developments supported daily life and contributed to the growth of increasingly complex communities.

The illustration on page 3 shows a settled agricultural community with crops, houses, people working, and domesticated animals, visually representing the shift towards village life.

How Do PW Class 6 Notes Help with Timelines and Sources of History?

The PW Class 6 Timelines and Sources of History Notes organise the chapter around the main questions students need to understand: how the past is studied, how historical time is arranged, what evidence historians use, and how early human life changed over time.

• Revise Historical Time with Timelines

PW notes use timelines to place developments across long periods of history. Students can refer to them while revising BCE and CE and see how events such as early rock art, agriculture, pottery, and metallurgy fit into a chronological sequence.

• Distinguish Between Experts and Historical Evidence

The notes bring together the roles of geologists, palaeontologists, anthropologists, and archaeologists. They also cover sources such as archaeological remains, literature, inscriptions, oral traditions, coins, and monuments, making it easier to separate who studies the past from what evidence is studied.

• Follow the Changes in Early Human Life

PW notes connect hunting and gathering, temporary shelters, tools, rock paintings, agriculture, animal domestication, permanent settlements, exchange, pottery, and metalworking. Students can therefore revise early human history as a sequence of developments rather than as isolated facts.

• Use Visual References During Revision

Photographs, timelines, and illustrations are included alongside the chapter content. These visuals can help students recall the roles of different experts, the order of historical developments, and the transition from early human groups to agricultural communities.

Timelines and historical sources allow historians to arrange events and use evidence to reconstruct the past. The development of early humans from hunters and gatherers to farming communities also shows how human societies changed over long periods. PW Class 6 Social Science Notes bring these ideas together through explanations, timelines, and visual references that students can use during chapter revision.

Related Resources

• CBSE Class 6 Social Science NCERT Solutions

• CBSE Class 6 Social Science Sample Paper

• CBSE Class 6 Social Science Most Important Questions