Historical Abbreviations and Time Periods

How many years are in a decade?

• 5 years

• 10 years

• 20 years

• 100 years

Which of the following abbreviations is used to refer to the time period before the birth of Christ?

• AD

• CE

• BC

• Circa

What does the term "circa" (c. or ca) mean?

• Approximately

• Exactly

• Before

• After

How many years are there in a century?

• 100 years

• 50 years

• 10 years

• 200 years

What do AD and CE refer to?

• The same time period, before Christ was born

• The same time period, after Christ was born

• Different time periods, before Christ was born

• Different time periods, after Christ was born

How would you write 100 years before the birth of Christ?

How many years are in a century?

• Fifty years

• Seventy-five years

• One hundred years

• One hundred and fifty years

What is the meaning of the term "decade"?

• Five years

• Ten years

• Fifteen years

• Twenty years