The Unknown Comic was a stage name for a particular comedian. He was called 'unknown' perhaps because he wasn't widely recognized initially or had a unique style that set him apart from mainstream comedians.
Not sure. It might be that he had some conflicts with the industry or simply wanted to change directions in his life. Without more specific info, it's tough to tell for sure.
The term 'unknown comic' in the 70s is quite broad. It could refer to any number of comedians who were trying to make it but didn't achieve significant recognition. Maybe they didn't have the right connections or their style didn't resonate with the mainstream audience at the time.
Sorry, can't answer that. Without any specific indicators or background information, it's really hard to say how old the unknown comic is. It could be from recent years or way back in the past.