[Tellurian]

The Hakka of China are an interesting group too

Very interesting read. The theory is that 5700 or so years ago, groups in Southern-Germany/Austria/Chechia learned to ride horses, and were able to quickly expand their range in all directions, including the British Isles (Celts) to the west, Scandinavia to the north, and the -stans and beyond to the east. All very politically incorrect and throwing accepted Chinese history for a loop.

[blam]

"The theory is that 5700 or so years ago, groups in Southern-Germany/Austria/Chechia learned to ride horses, and were able to quickly expand their range in all directions...."

Same time as the Black Sea Flood which would have sent refugees everywhere too.

In fact, I believe it was these refugees who spread farming and the Indo-European language all around.