[blam]

"The work on the Hakka, one of the Chinese components, has been done by Chinese themselves ~ kind of hard to find interesting stuff about them so you have to look for "Great Wall" in any searches. The Hakka are the folks the Han supposedly built the wall to keep out!"

Yup. The Hakka are an interesting group. They moved all the way across China (five major migrations) and to this day are known as the 'guests.' They apparently originally had some Caucasian features as there are records that indicate severe persecution and even death for those with such features during the migrations.

[muawiyah]

That's the "nose story". I think it's really more about the Han than the Hakka.