PPT: Timeline and Sources of History | Social Studies for Class 6 PDF Download

 Page 1


Timeline and Sources 
of History
History is an ongoing dialogue between past and present. Understanding our 
history helps us make sense of today's world. We'll explore how we measure 
historical time and learn about various sources that reveal our past.
Page 2


Timeline and Sources 
of History
History is an ongoing dialogue between past and present. Understanding our 
history helps us make sense of today's world. We'll explore how we measure 
historical time and learn about various sources that reveal our past.
Measuring Historical Time
Gregorian Calendar
The most widely used calendar today, 
years are counted from the birth of 
Jesus Christ.
Common Era (CE)
Years after Christ's birth, formerly 
called AD. For example, 1947 CE.
Before Common Era (BCE)
Years before Christ's birth, formerly 
called BC. For example, 560 BCE.
Page 3


Timeline and Sources 
of History
History is an ongoing dialogue between past and present. Understanding our 
history helps us make sense of today's world. We'll explore how we measure 
historical time and learn about various sources that reveal our past.
Measuring Historical Time
Gregorian Calendar
The most widely used calendar today, 
years are counted from the birth of 
Jesus Christ.
Common Era (CE)
Years after Christ's birth, formerly 
called AD. For example, 1947 CE.
Before Common Era (BCE)
Years before Christ's birth, formerly 
called BC. For example, 560 BCE.
Understanding Timelines
1
Sequence of Events
Timelines show historical events in chronological order.
2
Visual Representation
They provide a visual way to understand the flow of history.
3
Contextualizing Events
Timelines help place events in relation to one another.
Page 4


Timeline and Sources 
of History
History is an ongoing dialogue between past and present. Understanding our 
history helps us make sense of today's world. We'll explore how we measure 
historical time and learn about various sources that reveal our past.
Measuring Historical Time
Gregorian Calendar
The most widely used calendar today, 
years are counted from the birth of 
Jesus Christ.
Common Era (CE)
Years after Christ's birth, formerly 
called AD. For example, 1947 CE.
Before Common Era (BCE)
Years before Christ's birth, formerly 
called BC. For example, 560 BCE.
Understanding Timelines
1
Sequence of Events
Timelines show historical events in chronological order.
2
Visual Representation
They provide a visual way to understand the flow of history.
3
Contextualizing Events
Timelines help place events in relation to one another.
Measuring Longer Time 
Periods
Century
A period of 100 years. We are currently in the 21st century CE.
Millennium
A period of 1,000 years. We are in the 3rd millennium CE.
BCE Calculations
Centuries and millennia BCE are counted backwards from 1 BCE.
Page 5


Timeline and Sources 
of History
History is an ongoing dialogue between past and present. Understanding our 
history helps us make sense of today's world. We'll explore how we measure 
historical time and learn about various sources that reveal our past.
Measuring Historical Time
Gregorian Calendar
The most widely used calendar today, 
years are counted from the birth of 
Jesus Christ.
Common Era (CE)
Years after Christ's birth, formerly 
called AD. For example, 1947 CE.
Before Common Era (BCE)
Years before Christ's birth, formerly 
called BC. For example, 560 BCE.
Understanding Timelines
1
Sequence of Events
Timelines show historical events in chronological order.
2
Visual Representation
They provide a visual way to understand the flow of history.
3
Contextualizing Events
Timelines help place events in relation to one another.
Measuring Longer Time 
Periods
Century
A period of 100 years. We are currently in the 21st century CE.
Millennium
A period of 1,000 years. We are in the 3rd millennium CE.
BCE Calculations
Centuries and millennia BCE are counted backwards from 1 BCE.
T raditional Indian Calendars
Panchanga
Traditional Indian almanac based on 
astronomical calculations.
Solar and Lunar Positions
Used to define months and predict 
celestial events.
Cultural Significance
Provides dates for festivals and 
auspicious events.