Transcript Calendars of the World

Calendars of the World
How Do We Measure
Time?
Dates
Dates allow us to place events in
correct order and identify events
that happened at the same time
Some Different
Calendars
Christian
Calendar
Islamic
Calendar
Jewish
Calendar
Julian
Calendar
Christian Calendar
Based on the supposed year of Historical
Jesus’ birth (year Jesus born should be Year
1)
Years before His supposed birth are marked B.C.
(Before Christ); Years after His supposed birth are
marked A.D. (Anno Domini “Year of our Lord” in
Latin)
A BC Timeline
An AD Timeline
Christian Calendar
1-100= 1st Century AD
101-200= 2nd Century AD
201-300= 3rd Century AD
1901-2000= 20th Century AD
2001-2100= 21st Century AD (etc.)
Islamic Calendar
Based on the year Mohammed returned
to Mecca, Saudi Arabia and converted
city to Islam (holiest city in Islam)
Islamic Calendar
Hijrah: Year 1 on the Islamic Calendar
(622 AD on Christian Calander)
This is the year of city of Mecca’s conversion to Islam
Jewish Calendar
Based on the year that they believe God
created the earth (3761 BC on Christian
Calendar)
Year 2000 AD was 5761 on Jewish Calendar
Julian Calendar
Calendar we use now in the Western World
Roman Emperor Julius Caesar needed the
whole empire on the same schedule for taxing
purposes (1st Century BC)
Julian Calendar
Julian Calendar first to recognized a year as
365.25 days (leap years come later)
Julian Calendar
Next Roman Emperor Augustus
changed 7th month’s name to July
(to honor Julius Caesar)
took a day from February
to make July 31 days
changed 8th month’s name to August
(to honor himself)
No Year 0 in Julian Calendar
Julian Calendar
BC 300-201=3rd Century
200-101= 2nd Century BCE (Before Common Era)
100-1= 1st Century BCE (Before Common Era)
1-100= 1st Century CE (Common Era)
101-200=2nd Century CE (Common Era)
1901-2000= 20th Century CE (Common Era)
2001-2100= 21st Century CE (Common Era)
Final Thought
on Calendars
Remember that calendars are arbitrary,
made and manipulated by people to
serve their needs