1. Terms to learn and understand
Timelines
Terms to learn and understand
Calendars
Century
Millennium
BC, BCE, Zero, AD, CE

2. What are they? Where did we get our?
Calendar
What are they?
Where did we get our?

3. Gregorian Calendar International standard for world civil use today
Adopted by Pope Gregory XIII: 1582
Inaccurate by 26 sec./yr (1 day/3,323 yr)
The other calendars in use today are restricted to a particular religion or culture

4. Roman Calendar Legacy
The order of the months and number of days were adopted from the Julian calendar (Julius Caesar)

5. Calendar
A calendar is a system of organizing units of time for the purpose of reckoning time over extended periods.
They serve as a source of social order and cultural identity
There are about 40 calendars used in the world today

6. Time Basis Day: based on the rotation of the Earth on its axis
Year: based on the revolution of the Earth around the Sun
Month: based on the revolution of the Moon around the Earth

7. Timelines
Why do we use timelines?

8. A calendar of events to make it easy to visually see the order in which events occurred
To be able to relate events with cause and effect occurrences.

9. For example: the Persian War happened before Athens became a Mediterranean power and this led to the Peloponnesian War
Athens
Becomes
Med.
power
490
480
Persian
War
Peloponnesian
War
450
432
Years in BC

10. Time Terms
Decade:
10 years

11. Century: 100 years Cent is a Latin word for 100
Metric measurement centimeter
Remember there are 100 cents in a dollar.

12. Millennium:
1000 years
In metric measurement: millimeter

13. BC and AD B.C. means time period Before Christ
AD (Anno Domini) Latin for “In the Year of the Lord”

14. CE and BCE
Some people want to avoid the reference to Christ and use the following abbreviations
BCE: “Before the Common Era” or “Before the Christian Era”
CE: “Common Era” or “Christian Era”

15. AD or CE
BC or BCE
100
100
200
200
The numbers get larger the further they are from zero

16. It’s the year 2006 What century are we in? Answer 21st century
Why? Here’s the explanation…

17. AD or CE
BC or BCE
100 44
100
200
200
Death Of
Julius
Caesar
1st century
2nd century
The first century begins with the zero and continues for the next 100 years

18. Now what Millennium is it?
Answer
3rd millennium for the same reason

19. What do you do first to make a timeline?
First draw a line

20. 2. Figure out how to evenly divide the line into time spaces

21. 3. Place numbers at the spaces

22. 4. Begin to add the numbers along the timeline in order
750 BC Villages united to form the city of Rome (kings)
Where would you place this date?

23. 1. 750 BC Villages united to form the city of Rome (kings) Where would you place this date?
750
Rome’s beginning

24. 2. Next date: 509 BC Rome became a republic
509
Rome becomes
republic
750
Rome’s beginning

25. 3. 450 BC The Twelve Tables were written
509
Rome becomes
republic
750
Rome’s beginning

26. 4. 287 BC Plebeians gained equality with patricians
450
12 Tables
written
287
Plebeians
Equality
w/ patricians
509
Rome becomes
republic
750
Rome’s beginning

27. 5. Third century Rome ruled most of the Italian Peninsula
Rome rules
peninsula
450
12 Tables
written
287
Plebeians
Equality
w/ patricians
509
Rome becomes
republic
750
Rome’s beginning

28. Now it’s your turn. Complete the rest of the timeline
Now it’s your turn! Complete the rest of the timeline. Any unfinished portion is homework.
450
12 Tables
written
Punic Wars
287
Plebeians
Equality
w/ patricians
509
Rome becomes
republic
750
Rome’s beginning

29. Second Century BC 3rd century Rome rules peninsula 450 12 Tables
Rome ruled most ot the pennisula
450
12 Tables
written
Augustus
1st emporer
Christian religion
Spreads 3rd Century AD
Julius Caesar dictator 45BC
Christianity
Official
Religion
312 AD
Christianity
Grows 14 AD
64 persecution
287
Plebeians
Equality
w/ patricians
306AD
Constantine
emporer
509
Rome becomes
republic
Julius Caesar
Stabbed to
Death 44BC
750
Rome’s beginning
455AD
Vandals sack
Rome
Republic gov’t begins to change
100BC
Pax Romana
27BC-180 AD