TextBook social studie grsade 6-7

Time
While history is the story of people, it is also the examination of when events occurred.
Keeping track of the order of historical events will help you to better retain and
understand the material. To help you remember the order and dates of important events in
history, this book contains numerous time lines. Below is some instruction on how to read
a time line, as well as a look at some terms associated with tracking time in history.
How to Read a Time Line
B.C. years are counted
down to the year 1 B.C.,
so 1200 B.C. is a century
earlier than 1100 B.C.
and so on.
The title conveys what material
the time line is examining.
1200 B.C.
Olmec
civilization arises.
900 B.C.
Chavín culture
emerges.
500 B.C.
Zapotec establish
Monte Albán.
200 B.C.
Nazca culture
emerges.
A.D. 100
Moche
culture
arises.
THE AMERICAS
AFRICA, ASIA, AND EUROPE
Around 1200 B.C.
Egyptian
Empire begins
to decline.
Specific titles explain the
geographic area to which
each line relates.
477 B.C.
Golden Age of
Greece begins.
202 B.C.
Han
Dynasty
begins in
China.
Around A.D.120
Roman Empire
reaches its
height.
B.C.
A.D.
BCE/CE
decade
century
millennium
age/era
Common Chronological Terms
“Before Christ.” Refers to a date so many years before the birth of Jesus Christ.
“Anno Domini” (“in the year of the lord”). Refers to a date so many years after
the birth of Jesus Christ.
“Before the Common Era” and “Common Era.” These terms correspond to
B.C. and A.D., respectively.
10 years. (For example: The 1930s was a decade of economic depression in
many parts of the world.)
100 years. Note that the first century A.D. refers to the years 1 to 100. So, the
twentieth century refers to the years 1901–2000. (For example: The fall of China’s
Han Empire in A.D. 220 was an important event of the third century.)
1,000 years. (For example, January 1, 2001, is the start of a new millennium.)
Broad time period characterized by a shared pattern of life. Ages and eras
usually do not have definite starting or ending points. (For example: The
Stone Age began around 2 million years ago and lasted until about 3000 B.C.
It refers to the period when humans used stone, rather than metal tools.)
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