Working With Historic Time B.C. “Before Christ” Time period before Jesus was born. B.C.E “Before Common Era” Non-religious term used for time before Jesus B.C and B.C.E are basically the same! A.D. “Anno Domini” – in the year of the Lord (Latin) Refers to time periods since birth of Jesus C.E. “Common Era” Non-religious term used for time since Jesus A.D. and C.E. are basically the same!
Using an Historic Timeline
Using an historic timeline is much like using a number line in math with one major difference – there 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.
Sample Timeline Problems
Granny Jones was born in 1920 C.E. and died in 2006 C.E. How old was she when she died?
Gramps Wilson died in 2003 A.D. at the age of 97. In what year was he born?
An archaeologist uncovered the remains of a human who lived from approximately 1750 B.C. and died around 1720 B.C. How old was this individual when they died?
Using the same person from above, how many years ago did they die?
If Queen Nefertiti died in 1335 B.C.E. at age 42, in what year was she born?
Century a time period of 100 years
** Because there is no “year zero,” centuries always begin with a year ending in the number “1” and end in a year ending with “00.”
** In order to name the century, take the “00” off the last year of the century, and that is its name.
1-100 C.E. 1 st Century C.E.
1301 – 1400 A.D. 14 th Century A.D.
700-601 B.C. 7 th Century B.C.
Sample Century Problems
The years 501 - 600 C.E. would be the ________ century.
The years 1701 – 1800 A.D. would be the ________ century.