I don't like tattoo, do you?
I don't either. Tattoos are modifications to a person's body 
I learnt it was used during slavery as mark to identity slaves
That might be true. Modern tattoos are inserted into the skin using ink and dyes 
OK so what's the origin?
It originated about a 100 years ago. It was a fashion for sailors like Jack Sparrow and Rdgabmomoh
OK,So why do celebrities love tattoo on their body?
Tattoos are now been accepted by some many people of all professional backgrounds including bikers
But certain professional don't tattoo. like doctors
That is true. Doctors and Clergies dont like tattoos.