Learning this term was required to move on to the next belts in my Taekwondo classes, thought it was a South Korean thing, but I guess not. I've only ever heared of Filial Piety a few times out of that environment.
Imperial China is basically the Greek/Roman empire of East Asia. Both of these civilizations made deep and lasting impact on the culture of East Asia and Europe/North Africa/West Asia respectively.
China only really had a strong impact in China and Korea - though a lot of Chinese people tend to overstate their impact for cultural chauvinism. Outside of possibly the Viet region as well, Chinese culture has had little impact. Imperial Chinese culture has had relatively little impact in the rest of East Asia (Philippines, Japan, Thailand, Malaysia, Indonesia etc...), and most of the Chinese culture in these regions is from recent immigration in the past century or so.
EDIT: not sure why the post is being negged considering it's basically true. I suggest people actually travel around the region and find out how little Chinese culture has impacted East Asia. I am a long term resident of East Asia and I understand the culture more than most Chinese people.
China's influence on Japan has been huge... It's very odd to read a claim that Chinese culture has had little impact on Japan!
Of course there are specifically Japanese aspects but more often than not there is Chinese influence. Architecture, writing, religion, dress, food, everywhere.
You could argue that other cultures have had similar impacts on Japan as well, including Western and Indian. What I disagree with is the idea that China is the "Greece of Asia" which is laughable at best. How exactly has the Chinese had a major influence on Japanese religion, architecture and dress? Chinese food shares the table with numerous cuisines from across Asia, and Chinese writing is also shared with Japanese, Western and Indian writing influences as well.
It's easy to come up with many examples of major Chinese cultural elements in the surrounding countries.
I'll give just one obvious example: Kanji. Kanji is obviously a major part of Japanese culture. It literally means "Chinese characters," because that's what it was adapted from.[0]
Or to give you just one more example, because it's incredibly striking: Japan's own name for itself, Nihon/Nippon, is borrowed from Chinese. The same is actually true of "Vietnam," which is also a loanword from Chinese.
But relative impact is low. Latin and Indian scripts are used throughout Asia as well, including Japan. i.e. to say that it is the "greece of asia" is a bit over-chauvinistic.
Somewhere around half of the words in modern Korean, Japanese and Vietnamese are borrowed from Chinese. The impact of Chinese culture is massive across the board in these countries.
Half the words in modern Japanese is a long stretch. All Japanese words have two readings so obviously you can say that, but only one of those readings is used in daily conversation.
Confucius is like Chinese Plato/Socrates.