ever wondered where did the barber pole originated?

The origin of the candy-cane-like barber pole is darker than one might think. Barbers actually used to be surgeons and dentists as well. A white pole was used when they were bloodletting, and the barber would use a cloth to stop the bleeding, then wrap it around the pole and stick it outside to dry. Hence the image we have now!

basically: the while is for bandages they use for bloodletting and the red is u already know; blood.

but why are barbers became surgeon and dentist? its because they cant afford a physician so, they made a quack doctor.