Comparison of Vietnamese vs Japanese language history gives us differences between origin of Vietnamese and Japanese language. History of Vietnamese language states that this language originated in c. 1440 whereas history of Japanese language states that this language originated in 1185. Family of the language also forms a part of history of that language. More on language families of these languages can be found out on Vietnamese and Japanese Language History.
People around the world use different languages to interact with each other. Even if we cannot communicate fluently in any language, it will always be beneficial to know about some of the common greetings or phrases from that language. This is where Vietnamese and Japanese greetings helps you to understand basic phrases in Vietnamese and Japanese language. Vietnamese word for "Hello" is Xin chào or Japanese word for "Thank You" is ありがとう (Arigatō). Find more of such common Vietnamese Greetings and Japanese Greetings. These greetings will help you to be more confident when conversing with natives that speak these languages.
The Vietnamese vs Japanese difficulty level basically depends on the number of Vietnamese Alphabets and Japanese Alphabets. Also the number of vowels and consonants in the language plays an important role in deciding the difficulty level of that language. The important points to be considered when we compare Vietnamese and Japanese are the origin, speaking countries, language family, different greetings, speaking population of these languages. Want to know in Vietnamese and Japanese, which language is harder to learn? Time required to learn Vietnamese is 44 weeks while to learn Japanese time required is 88 weeks.