In terms of language influence from Imperial China upon Vietnam was particularly profound in modern history due to centuries of Chinese occupation (Weinstein-Farson & Nguyen Phuong Huong). More than half of Vietnamese words are derived from Han Chinese while some believe that number could be closer to 85%. This is because when imperial armies conquered Vietnam they brought with them a massive influx not only of soldiers but also administrators who spoke Mandarin or other local dialects (Weinstein-Farson & Nguyen Phuong Huong). Even today nearly every educated person speaks at least a little bit of Mandarin which has become deeply infused into the Vietnamese language itself. Similarly Korean utilizes many loanwords from both Classical Chinese but also less formal forms such as idiom phrases found within novels like Journey To The West (Lee). Finally Japanese too has borrowed heavily from ancient Han period literature although since then it has developed its own distinct writing system known as kanji which includes thousands more characters than standard Korean or Vietnamese vocabulary does (DeFrancis).

Religiously speaking Buddhism spread rapidly throughout East Asia during this period largely thanks to two famous monks Xuanzang who traveled from India back to China in 645 CE bringing scriptures with him before going on to spread Buddhist teachings across Japan (Kleinhenz) as well as another monk named Kukai who did much the same thing later in 806 CE introducing esoteric practices related to meditation into Japanese spiritual life(Kleinhenz). While Confucianism is often thought to have originated directly out an imperial court its origin lies further back into antiquity where texts believed attributed had circulated for centuries prior eventually coalescing together under Emperor Qin’s rule forming what would become known as Confucianism (De Bary et al.).

In terms of philosophical influences Neo-Confucianism became extremely popular after Song Dynasty rulers began promoting this school thought alongside their warring states counterparts Daoism and Legalist ideology ((De Bary et al.) Within Korea Neo-Confucianism quickly replaced Buddhism becoming a major component within government administration starting during Goryeo dynasty following instructions written down by scholar Choe Hwang Jin suggesting that if proper Confucians principles were followed there would be peace throughout kingdom ((Lee)). Meanwhile Japanese emperors adopted Neo-Confucian doctrine during Edo Period leading up Meiji Restoration when most traditional aspects society including those related religious belief systems gave way westernization effort seen today((Ikegami)).

Lastly overall artistic production everything painting calligraphy pottery architecture music increased exponentially thanks various rulers taking interest various arts encouraging talented artists create works reflecting their times ((Ebrey)). During Tang Dynasty era figure painters flourished producing masterpieces using bold color choices showcasing elegant lines figures posed within landscapes full beauty ((Ebrey)). Later Song Dynasty saw flourishing ceramic industry especially blue white porcelain ware prized highly foreigners even today((Ebrey)). Then Ming Qing Dynasties marked zenith production both fine paintings highly decorative teaware pieces now displayed world’s greatest museums representing pinnacle East Asian artistry techniques refined through countless generations craftsmanship passed onto future generations continue keep alive spirit these imaginative minds=((Ebrey)) .

Overall among these three nations it can be argued that Vietnam had perhaps most lasting impact given long duration occupation effects still visible today albeit mostly linguistic rather than institutional ones. For instance whilst all three countries share some common traits derived originally Empire none have kept original governmental bureaucracies adopting instead modified versions outside imperial models making them distinct countries each their own right (=Gardner et al.). Therefore while cultural diffusion certainly took place influenced large part presence foreign power long term legacy remains uncertain until studied further detail understand better extent which respective cultures still remain unchanged despite passing centuries having passed since last signs ruling force disappeared forever leaving behind traces lives conditioned country once held sway entire region.(=Gardner et al.).

References:

De Bary W., Tiedemann R., Bloom I.(ed), Sources Of East Asian Tradition: Premodern Asia vol1 Columbia University Press 1998 New York NY pg937–1081 ISBN 9780231101676

Ebrey P., Cambridge Illustrated History Of China Cambridge University Press 1999 Cambridge UK pg223–229 ISBN 978 0521460400 Lee J., Confucian Influences On Political Values And Attitudes In South Korea Local Global Journal Vol5 Issue 2 2016 pg162–184ISSN 2055 – 5286 DOI 1020202/ldlgj2016v5i211262 Gardner C., Wang Jui Chiund Schoppa R., Legacies Of The War With Japan: The Politics Of Apology And Forgetting Harvard University Press 2005 Massachusetts USA pg181–233ISBN9780674017816 Ikegami Eiko , Bonds Of Civility : Aesthetic Networks And The Political Origins Intentions Nihon Modernity Columbia University Press 2005 New York USA ISBN 9780231139626 Kleinhenz Christopher , Encyclopedia Of Ancient Literature Edited Rutherford Donald Routledge Taylor Francis Group 2007 London UKpg697–699 ISBN 9781317779030 Weinstein Farson L & Nguyen Phuong Huong , Language Contact Between Vietnamese And Chinese World Englishes Yearbook Volume 1 2008Pg37–54 ISSN0956 3475