The Korea culture has a saying of "have you eaten?".

At about Around 60 years ago, Korea was too poor and also scarce of food  food was so scarce that it became a very big problem just to live.
Korea had been a agrarian based society. So they had had the a very big spirit of team work that I can't imagine  now.
The culture and the environment made people say what "have you eaten?" for a greeting.
The culture and the environment also made people say "have you eaten?" for a greeting.
I guess the Korean culture  is now forgetting that saying about a meal for a greeting is being forgotten. Young people don't use the expression.

Please correct this. Thank you.~~~

"식사 하셨어요?"라고 말하는 한국 문화
60년 정도 전에 한국은 가난했고 살아가기 위해 큰 문제인 식량도 부족했어요.
한국은 농경기반사회였기에 제가 상상할 수 없을 정도로 협동심이 컸어요.
그런 문화와 환경에서 사람들은 인사말로 "식사 하셨어요"라는 말을 했어요.
인사로 식사를 물어보는 한국 문화는 잊혀지고 있는 것 같아요.
젊은 사람들은 그 표현을 쓰지 않아요.
제 글을 고쳐주시길 바래요. 고마워요~~~

Notes: Having recently transited through Incheon in Korea, I was very impressed with the culture and language.

It was certainly an impressive, vivid but all too short stay. It is very nice to see the drive to keep your distinct customs alive.

The Korea culture saying

"Have You Eaten?" << 이건 제목을 위한 충분히 좋아요. 

제목에 중요한 단어 모두 대문자로 써야 돼요. 항상. 따옴표에도..

About 60 years ago, Korea was impoverished and food was so scarce that simply surviving was a major problem.

Korea had been agrarian based society and teamwork was something everyone believed in.

A main concern at the time was whether people had enough food or not, so naturally people began to greet others by asking (them) "Have you eaten?" 

I guess this way of greeting people is being used less and less these days/is going out of style/fashion. Younger Koreans don't seem to use the expression (too) much anymore. 

Please correct this. >

I would appreciate it if you would correct this. <

이건 더 정중한 표현입니다.
그건 더 공순표현입니다.
더 아주 높임말 표현입니다.

Thank you.

The Korea culture saying "have you eaten?".

Around 60 years ago, Korea was so poor and also scarce of food that it was difficult to live.
Korea was an agrarian based society. so They had a very big spirit of team work that I can't imagine.
The culture and the environment made people ask "what have you eaten?" for a greeting.
The culture and the environment alsomade people ask "have you eaten?" for a greeting.

(or you can combine both sentances) 

The culture and the environment made people ask "what have you eaten?" or "have you eaten?" for a greeting.

I guess that in the Korean culture that saying about a meal for a greeting has been forgotten. Young people don't use the expression.

Please correct this. Thank you.~~~

"식사 하셨어요?"라고 말하는 한국 문화
60년 정도 전에 한국은 가난했고 살아가기 위해 큰 문제인 식량도 부족했어요.
한국은 농경기반사회였기에 제가 상상할 수 없을 정도로 협동심이 컸어요.
그런 문화와 환경에서 사람들은 인사말로 "식사 하셨어요"라는 말을 했어요.
인사로 식사를 물어보는 한국 문화는 잊혀지고 있는 것 같아요.
젊은 사람들은 그 표현을 쓰지 않아요.
제 글을 고쳐주시길 바래요. 고마워요~~~

This was really interesting and fun to read! What other greetings are there, between friends or family?