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Using Timelines to Understand History. Similar to Number Lines. -2. -1. 0. 1. 2. 2 BCE. 1 BCE. 1 CE. 2 CE. 3 CE. The Christian Calendar. BC = “Before Christ” AD = “Anno Domini” No, it does not mean “after death”. Latin meaning: “the year of our lord”.
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Similar to Number Lines -2 -1 0 1 2 2 BCE 1 BCE 1 CE 2 CE 3 CE
The Christian Calendar • BC = “Before Christ” • AD = “Anno Domini” • No, it does not mean “after death”. • Latin meaning: “the year of our lord”. • Now is 2013 years since the birth of Jesus.
The New System • BCE means “Before the Common Era” • 44 BCE = 44 BC • CE means “Common Era” • 2013 CE = 2013 AD
Other Calendars It is currently the year: • 2013 on the Christian calendar • 5774 on the Hebrew calendar • 1434 AH on the Islamic calendar • Year of the Snake on the Chinese calendar
Relative Time • YA = “years ago” • Dinosaurs died out 65 million YA • Earliest humans: 4 million YA
Rough Estimates of Dates • Ca. = circa = “around the time of” • Remember: circa sounds like “circle” which is round. • First stone tools were made ca. 2 million years ago.