The Three Thousand Year Old Wave

Having migrated along with other Austronesian groups from Southern China around 4,000 years ago, the Moken Sea Nomads of the Andaman Sea have always lived a precarious existence, spending half the year on the ocean, travelling in flotillas.
http://asiapacific.anu.edu.au/newmandala/2013/02/14/the-three-thousand-year-old-wave/