1. Working With Historic TimeWorking With Historic Time
B.C.B.C. “Before Christ”“Before Christ”
Time period before Jesus was born.Time period before Jesus was born.
B.C.EB.C.E “Before Common Era”“Before Common Era”
Non-religious term used for time before JesusNon-religious term used for time before Jesus
B.C and B.C.E are basically the same!B.C and B.C.E are basically the same!
A.D.A.D. “Anno Domini” – in the year of the Lord (Latin)“Anno Domini” – in the year of the Lord (Latin)
Refers to time periods since birth of JesusRefers to time periods since birth of Jesus
C.E.C.E. “Common Era”“Common Era”
Non-religious term used for time since JesusNon-religious term used for time since Jesus
A.D. and C.E. are basically the same!A.D. and C.E. are basically the same!

2. Using an Historic TimelineUsing an Historic Timeline
Using an historic timeline is much like using a number lineUsing an historic timeline is much like using a number line
in math with one major difference –in math with one major difference – there is no zerothere is no zero!!
 When using an historic timeline, think of the A.D. / C.E.
side like the positive numbers on a number line.
 Think of the B.C. / B.C.E. side like the negative numbers on
a number line.

3. Sample Timeline ProblemsSample Timeline Problems
1.1. Granny Jones was born in 1920 C.E. and died in 2006Granny Jones was born in 1920 C.E. and died in 2006
C.E. How old was she when she died?C.E. How old was she when she died?
2.2. Gramps Wilson died in 2003 A.D. at the age of 97. InGramps Wilson died in 2003 A.D. at the age of 97. In
what year was he born?what year was he born?
3.3. An archaeologist uncovered the remains of a human whoAn archaeologist uncovered the remains of a human who
lived from approximately 1750 B.C. and died aroundlived from approximately 1750 B.C. and died around
1720 B.C. How old was this individual when they died?1720 B.C. How old was this individual when they died?
4.4. Using the same person from above, how many years agoUsing the same person from above, how many years ago
did they die?did they die?
5.5. If Queen Nefertiti died in 1335 B.C.E. at age 42, in whatIf Queen Nefertiti died in 1335 B.C.E. at age 42, in what
year was she born?year was she born?

4. CENTURIESCENTURIES
CenturyCentury a time period of 100 yearsa time period of 100 years
**** Because there is no “year zero,” centuriesBecause there is no “year zero,” centuries alwaysalways
begin with a year ending in the number “1” and end inbegin with a year ending in the number “1” and end in
a year ending with “00.”a year ending with “00.”
**** In order to name the century, take the “00” off the lastIn order to name the century, take the “00” off the last
year of the century, and that is its name.year of the century, and that is its name.
ExamplesExamples::
1-100 C.E.1-100 C.E. 11stst
Century C.E.Century C.E.
1301 – 1400 A.D.1301 – 1400 A.D. 1414thth
Century A.D.Century A.D.
700-601 B.C.700-601 B.C. 77thth
Century B.C.Century B.C.

5. Sample Century ProblemsSample Century Problems
1.1. The years 501 - 600 C.E. would beThe years 501 - 600 C.E. would be
the ________ century.the ________ century.
2.2. The years 1701 – 1800 A.D. wouldThe years 1701 – 1800 A.D. would
be the ________ century.be the ________ century.
3.3. The 14The 14thth
century A.D. wouldcentury A.D. would
comprise what years?comprise what years?
4.4. The 8The 8thth
century C.E. would comprisecentury C.E. would comprise
what years?what years?
5.5. The 1The 1stst
century B.C. would comprisecentury B.C. would comprise
what years?what years?

6. Sample Century ProblemsSample Century Problems
1.1. The years 501 - 600 C.E. would beThe years 501 - 600 C.E. would be
the ________ century.the ________ century.
2.2. The years 1701 – 1800 A.D. wouldThe years 1701 – 1800 A.D. would
be the ________ century.be the ________ century.
3.3. The 14The 14thth
century A.D. wouldcentury A.D. would
comprise what years?comprise what years?
4.4. The 8The 8thth
century C.E. would comprisecentury C.E. would comprise
what years?what years?
5.5. The 1The 1stst
century B.C. would comprisecentury B.C. would comprise
what years?what years?