"Art History Class" Why does the professor mention that he checked several references about the length of Queen Louise’s Balle

Professor:
Sorry.about the tests. I don’t have them finished. They just took longer to grade than I thought  Q6
they would So...I’ll have them for you next time, Okay then. Let’s begin our diSbUrden of the ballet.... If  Q7
you read the chapter in your text, you already know that uh... in 1489, a performance that was something
like a dinner theater was organized to celebrate the marriage of the Duke of Milan, and...a dance Student 1:Now/have a question.   I~
Professor:Okay.
Student 1:
You said that the Polish Ballet was the first ballet, but I thought that the book said the first ballet was
Queen Louise’s Ballet.
Professor:
Good question. Well, I said the Polish Balletwas the first use of the term balletfor a dance performance,
but Queen Louise’s Ballet is generally considered the first modern ballet. As you’ll remember, from the
book, the ballet was performed before ten thousand guests, and it was five hours long. When I was doing  Q10
the research for this lecture I saw several referenceS to the time, so... so I know that this is accurate,
but I kept thinking no one wouldwatch a ballet for five hours. But it must be correct. I can only assume
that other activities were going on simultaneously, like a banquet and conversation. Don’t you think?
Anyway, what makes Queen Louise’s Ballet so unique, besides the length, and why it’s the first
modern ballet, is that it was connected by a story line or, in technical terms, uh, it’s called dramatic
cohesion. Each scene was related to the tales of Circe, a Greek enchantress, who used her powers to battle
with man and the gods. The triumph of good, portrayed by Jupiter, over evil, portrayed by Circe, was
told in a... let’s call it a unified production.