The Number of the Day: 1,200

Related Fact: Child’s famous book Mastering the Art of French Cooking was first published in 1961 – but didn’t make its way onto the New York Times Best Seller List until 48 years later. When it finally did appear there in 2009, much of the boost in sales for the 700-plus page tome was attributed to its role in the film Julie & Julia.

[Sources: Smithsonian and NY Times. See previous Numbers of the Day here.]