Objective: Today students are going to study Ancient China and revisit how to read a timeline.

Bellwork: Powerpoint. Please have out your classwork from Friday as well.

Agenda: Review how timelines work. Take quiz. Continue worksheet. Go over worksheet.

Content Standard: 7 – H1.1.2 Compare and contrast several different calendar systems used in the past and present and their cultural significance

Reading a Timeline: Revisited

What is a timeline?A timeline tells a

story of what has happened.

It displays things in chronological order (in order of events as they have happened.

Timelines have two sidesThe Left Side:

BCE-Before the Common Era

BC-Before ChristThis is because the

calendar used in the United States is a Christian calendar.

The Right Side:CE-Common EraAD-”In the year of

our lord”

Think of timelines like a…Number line.A number line is a line

with positive numbers on one side and negative numbers on the other.

On the negative side of a number line, the numbers count down to 0.

On the positive side of a number line, the numbers count up from 0.

Timelines do the same.Think of BCE as the

negative side and CE as the positive.Remember to look for

the “B” in figuring out if you add or subtract.One “B” means add.Two “B’s” mean you are

on the same side. Subtract when you see

two of the same abbreviations.

Not to confuse you, but there is no year “0.”

How to tell the distance:If time goes from

BCE to CE, you must add that time together to see how long ago it was.For example, if

something happened in 500 BCE, it really happened 2514 years ago because we live in the common era today.

2014500 BCE

1 CE

How to tell the distance cont’d:If something

happens on the same side of the timeline (meaning it does not cross year 1), then you simply subtract it.

If something happened in 500 CE, it happened 1514 years ago.

2014500 CE

1CE

About how long ago did the Zhou begin ruling?

A. 2000 yearsB. 3000 yearsC. 4000 yearsD. 6000 years

2000 years

3000 years

4000 years

6000 years

29%

0%

12%

59%

About how long ago did the Tang stop ruling?

A. 500 yearsB. 1100 yearsC. 1800 yearsD. 2000 years

500 years

1100 years

1800 years

2000 years

6%

18%

6%

71%

Which dynasty ruled the longest?

A. QinB. ZhouC. HanD. SuiE. Tang

QinZhou

Han SuiTang

6%

76%

0%6%

12%

IF the Xia quit ruling in 1700 BCE, about how long ago did the Xia quit ruling?

A. 100 years agoB. 3200 years agoC. 3700 years agoD. 5000 years ago

100 years ago

3200 years ago

3700 years ago

5000 years ago

6%0%

71%

24%

If I was born in 300 BCE, how old am I?A. 1714 years old.B. 2314 years old.C. 1314 years old.D. 1614 years old

1714 years old.

2314 years old.

1314 years old.

1614 years old

11%6%

0%

83%

If Christopher Columbus came to America in 1492 CE, how long ago did he come here?

A. 522B. 422C. 322D. 122

522422

322122

83%

0%0%

17%

If the United States made in 1776 CE, how old is it?A. 238 yearsB. 438 yearsC. 338 yearsD. 138 years

238 years

438 years

338 years

138 years

56%

0%

33%

11%

If the Old Kingdom in Egypt existed in 2500 BCE, about how long ago did it exist?

A. 6500 years agoB. 2500 years agoC. 4500 years agoD. 3500 years ago

6500 years ago

2500 years ago

4500 years ago

3500 years ago

6%0%

83%

11%

Which year is the oldest?A. 1492 CEB. 1999 BCEC. 1999 CED. 1776 BCE. 1776 AD

1492 CE

1999 BCE

1999 CE

1776 BC

1776 AD

0%

72%

0%

17%11%