Bill Weasley starts his fifth year at Hogwarts and is made a Prefect

Timeline Notes

Rowling's statements about the ages of the older Weasley boys seem to be inconsistent. However, careful analysis of all canon information strongly suggests that Charlie left Hogwarts in his sixth year to go to Romania to study dragons. The Lexicon follows this logic in determining dates since it is the only way for all canon information to fit.