I want to know the answer to the following question:
How far back can dog training be found?
All the background I'm provided with is that "While dog training as an organized activity can be traced back to the 18th century, in the last decades of the 20th century it became a high profile issue as many normal dog behaviors such as barking, jumping up, digging, rolling in dung, fighting, and urine marking (which dogs do to establish territory through scent), became increasingly incompatible with the new role of a pet dog.". Is that enough to answer the question?
Answer: yes