An eponym is a person, a place, or thing for whom or for which something is named, or believed to be named. For example, Elizabeth I of England is the eponym of the Elizabethan era.
Many genericized trademarks such as aspirin,heroin and thermos are based on their original brand eponyms.
The adjectives derived from eponym, which include eponymous and eponymic, similarly refers to being the person or thing after whom something is named, as "the eponymous founder of the Ford Motor Company" refers to founder's being Henry Ford. Recent usage, especially in the recorded-music industry, also allows eponymous to mean "named after its central character or creator".
Time periods have often been named after a ruler or other influential figure:
I guess you what it's all about
All the answers seem so clear to you
You know just exactly what do you want to do
And never allow a feeling of doubt
I guess you see where your road can lead
And all the pain that you have in a store
For now you have chosen to look every door
And find on your own what you think you need
(*) Turn away, find a way your own
I'll be there waiting here to say
Turn away, find a way your own
I'll still be calling your name
And if tried to show you how
Tomorrow is never like yesterday
Would you change your mind and see things my way
Or are you afraid that I'll bring you down?