The oldest paper ever discovered was found amoungst these people...it had Tocharoan A written on it. Tocharian is an extinct Indo-European language most closely related to an ancient Celtic line.
Tocharian Online dictionary:
http://www.utexas.edu/cola/centers/lrc/eieol/tokol-BF-X.html
This cracked me up:
“amok art, skill”
So to run amok in ancient Celtic was really a highly skilled artform...explains much about my heritage.