1. Working with Dates Notes:
LEQ: What methods are used to measure Time Span?
Answers:
Time Lines, Calendars, and Watches/Clocks

2. Examples: Use timelines to measure years, decades, and centuries.

3. Examples: Use calendars to measure months.

4. Examples: Use watches/clocks to measure days

5. Anno Domini Present Times A.D. 2016
Basic Timeline Structure:
B.C.= Before Christ
A.D.= Anno Domini (NOT After Death)
Anno Domini means “In the Year of Our Lord”
Title
Events
Intervals
Pictures or Photographs
Christ was Born A.D. 1
Before Christ 40,000 B.C.
Anno Domini Present Times A.D. 2016
Title

8. Intervals on a Timeline
When creating a timeline, the interval or number of years between each date must be equal.
This interval will vary depending on the length of the time period that the timeline covers.
An easy way to think about the interval being used on a timeline is "What are we counting by?”
On this timeline, there are 10 years between each date on the timeline, therefore the interval is 10 years. You can also think of it as "We're counting by 10 years."

10. English face Black Death Plague
How to calculate how many years ago an event took place in A.D.?
Take the larger A.D. date and subtract the smaller A.D. date to determine how long ago this event occurred.
Example:
A.D. 1348
English face Black Death Plague
A.D. 1
Christ was Born
A.D. 2016
Today

11. Try these with your partner:
A.D. 1
Christ was Born
A.D. 375
Hun’s Invade Europe
A.D. 2016
Today
A.D. 1
Christ was Born
A.D. 771
Arabs arrive in Spain
A.D. 2016
Today

12. The Building of the Great Pyramids
How to calculate how many years ago an event took place in B.C.?
Add the B.C. date to the current A.D to determine the answer.
Examples:
A.D. 2016
Today
3,000 B.C
The Building of the Great Pyramids
A.D. 1
Christ was born

13. Try these with your partner:
A.D. 2016
Today
A.D. 1
Christ was born
753 B.C.
Building of Rome
332 B.C.
Egypt is conquered
A.D. 2016
Today
A.D. 1
Christ was born

14. How to calculate how many years are between two A.D. dates.
Subtract the smaller A.D. date from the larger A.D. date.
A.D End of WWII
A.D End of Vietnam Conflict

15. 224 B.C. Start of construction on the Great Wall of China
How to calculate how many years are between two B.C. dates
Subtract the smaller B.C. date from the larger B.C. date.
773 B.C. First Olympiad in Greece
224 B.C. Start of construction on the Great Wall of China

16. H. Periods of History
Ancient History= Beginning of history until A.D. 476

17. H. Periods of History
Middle Ages= From A.D until A.D. 1500

18. H. Periods of History
Modern History=From A.D to the present