General Definition:
1. A series of people or events at intervals going back into the past, or any thing or any action that can be associated with this in context, especially ancestors and historical events.
As a Noun:
1. The people who are your parents, grandparents, great grandparents, and so on, long into the past. English = ancestors.
2. The events and people of the past. English = history.
As a Verb or Adjective:
1. To move from the present into the past, to look into the past, to recall long past events.