| A | B |
|---|
| past | something that has already happened |
| present | something that is happening right now |
| future | something that will happen later |
| year | a period of time, 365 days, January to December |
| century | a period of time, 100 years |
| timeline | a list of important events out in order of when they happened |
| modern | relating to the present or recent times as opposed to the remote past |
| decade | a period of 10 years, 10 years |
| ancient | happening in the very distant past and no longer in existence |
| sequence | a continuous or connected series of events |
| BC | Before Christ |
| AD | Anno Domini |
| Anno Domini | In the Year of our Lord |
| CE | Common Era |
| BCE | Before Common Era |
| AD | equals CE |
| BC | equals BCE |
