Final answer:
The box number that did Snape ask him to start at number: 1012.
Step-by-step explanation:
The question pertains to an event in the Harry Potter series, specifically an interaction involving Harry, Snape, and detention. This is not a factual question with a direct answer from the books, but rather asks for the recall of a particular detail from the Harry Potter universe.
It's important to distinguish between direct facts from the texts and the broader elements that build up the universe. The Harry Potter book series, which would be discussed in an English Literature class, often details Harry's detentions, but the question asked does not correspond to a specific event detailed in the books. Therefore, the question is based on a hypothetical scenario that doesn't have a specific answer provided in the series.
The question is: "During detention with Snape, Harry was tasked with clearing out old records of student punishments. What box number did Snape ask him to start at?"