"Glass Beads Made in Czech Village Adorn Bodies of the World’s Tribes"

"Preciosa sells directly to 70 countries and, through regional distributors, to 40 more. In Africa, the company sells to the Masai and Samburu tribes in Kenya and Tanzania, and to the Zulus, Xhosas, Ndebele and other tribes of southern Africa.

“You go to the Masai Mara and a lot of the beads you will see in the tourist markets are cheap Chinese products,” Mr. Adler said. “But the Masai themselves will only use our beads for their personal use.”

In North America, the largest market is for home hobbyists, but several Native American tribes also purchase the beads for higher-end pieces aimed at collectors and flush tourists."

http://www.nytimes.com/2016/01/13/world/europe/glass-beads-made-in-czech-village-adorn-bodies-of-the-worlds-tribes.html?_r=0

I want to know a lot more about the history of these tribes buying from the factory.