Japanese has properties like a pure vowel system and simple phonotactics.
The pure vowel system of the japanese language fascinates me.
I started learning Japanese a couple of years ago There does not seem to be a lot of history on Japanese language or even a date it first appeared. I know I homeschooled my daughter and she was very interested, we learned to speak some together It apparently has a lot of loan words from English, as well. Yeah, it was still pretty hard for me to learn. My daughter was much better at it.
Japanese is an agglutinative, mora-timed language with simple phonotactics, a pure vowel system, phonemic vowel and consonant length, and a lexically significant pitch-accent.