I like the topic of tattoos.  What do you know of the history of tattoos?  I know it has been practiced since the Neolithic times.  
I don't really know much. How did they do the first tattoos?
Well ancient art and archaeological  evidence shows tools done during the Paleolithic period in Europe. 
What was ink made from?
I don't know. But tattooed mummies have been found in 49 archaeological sites. 
Wow.So in Egypt?
The locations ranged from Greenland, Alaska, Siberia, Mongolia, western China, Egypt, Sudan, the Philippines, and the Andes.
Interesting. So it's evolved over a long time.