| Quote #1 When the siege and the assault were ended at Troy, |
The narrator of Sir Gawain begins his story after the fall of Troy - approximately 2000 years before the action begins. Why might he do this? Well, in order to get to Arthur, he has to go through a "history lite" version of the founding of Britain and the kings leading up to Arthur, which allows him to locate Arthur as part of a prestigious and long-lasting tradition of bravery, making him (and the stories surrounding him, like the narrator’s) seem very important, since they form a part of this tradition.
| Quote #2 And when Britain had been founded by this noble lord, |
This passage sets Arthur (and the story) in the "age bygone" in which more wondrous events have occurred than in any other. This "bygone age" is a little like "once upon a time" - we know to expect a universe similar to ours, but one in which anything - like fairies, ogres, and giant green men - is possible.
| Quote #3 For there the festival lasted the whole fifteen days |
Sir Gawain opens during the Christmas season at Arthur’s court, which, in the traditional church calendar, lasted a full fifteen days. During that time, the court gathers for the length of the whole celebration.