Retro

What do you call "Retro"? When do you refer to or describe something as "Retro"? We seem to use this word often to describe something from the past.

Some say Retro is something from the 50's or 60's, some say 70's or 80's.

Actually, "Retro" is a culturally outdated or aged style, trend, mode, or fashion, from the overall postmodern past, but have since that time become functionally or superficially the norm once again.

I love all things retro, they have character, worn and well loved, a story to tell, warm fuzzies, those were the days when.....