Final answer:
Polykleitos introduced the statue called the Canon, which focused on the proportion of parts of the body to create the ideal male form.
Step-by-step explanation:
The statue called the Canon was introduced by Polykleitos, a famous Greek sculptor who worked in bronze. He developed a canon of proportion that is demonstrated in his statue of Doryphoros (Spear Bearer). The Canon focused on the proportion of parts of the body in relationship to each other to create the ideal male form.