Why do you think Romans Romans used Greek subject material in their plays? For a bonus point, around what year did Greek material start appearing in Roman works?

Mainly because the Greek theatre is one of the early examples of this kind of art in the West. And during its expansion, Rome got in touch with several cultures and absorbed many of its main characteristics. When it comes to Greece, almost everything was used to shape Roman society.

Explanation:

Rome did use what is known as Acculturation to create its theatre. And Rome mainly adopted aspects of Greek culture, their achievements, and developing those aspects into Roman literature, art, and science. In many cases, instead of creating something new, Rome just adapts several Greek plays, turning into a show that would be enjoyable for a society that, in general, was not used with complicated and long plays. In Rome, the theatre was used as a political stand.