Answer:
Significant, great, important
Explanation:
This could be the death of a family member, or a certain academic/athletic achievement. Maybe the day you got a pet or the day that pet died. Maybe when you completed an important goal. If it's an important memory to you, you could use it.
The Pardoner accumulated his wealth by selling pardons, or promises of salvation. People would do bad things, and then maybe regret it because they fear the wrath of God and not being able to go to heaven after they die, so they go to the Pardoner to buy these pardons which erase their sins. Although this has indeed been done in reality, soon it became illegal and outlawed, so the Pardoner was basically a criminal who took people's last penny just so he could become rich himself. It is quite ironic, given that he is a sort of a priest, and chooses to be vile himself.
X He has changed back into monkey form
