I’m researching Eastern Asian calligraphy for an art essay and I don’t know how to begin. Have all eastern asian calligraphic styles evolved from the origins of Chinese Calligraphy in the Shang Dynasty?
If you’re researching, then likely you’ve already read the Wiki article:
Which indeed indicates the first organized use dating to this period.. But there are some indications of earlier usage.
There are several citations for the article which may give your further research materials.