The world's oldest letter inscription turned out to be a conspiracy against lice.

Israeli scientists have deciphered the oldest alphabetic inscription - it was made in Canaanite on an ivory comb. The age of the artifact is about 3.7 thousand years. The size of the scallop is 3.5 by 2.5 centimeters. The width of the engraved tiny letters is 1-3 millimeters. There are 17 of them, they form seven words. "Let this fang rip the lice out of the hair and beard," is written on the comb.