Historians use terms such as A.D., B.C., decade, and century

A.
to help us locate ourselves in space.

B.
to refer to periods of time.

C.

to help define the term odyssey.

D.
to identify ancient civilizations.

Question

Historians use terms such as A.D., B.C., decade, and century
  
 
 

 
 

  

  A. 
  to help us locate ourselves in space.   
   

 
 

  

  B. 
  to refer to periods of time.   
   

 
 

  

  C. 
 
to help define the term odyssey.
   
   

 
 

  

  D. 
  to identify ancient civilizations.

anonymous · Answer

to refer to periods of times! :D