Intellectual Property Factoid

The long arm of copyright:

Royalties from The Great Gatsby totaled only $8,397 during Fitzgerald’s lifetime. Today Gatsby is read in nearly every high school and college and regularly produces $500,000 a year in Scottie’s trust for her children.

FYI, Scottie is Fitzgerald's daughter.
Source.

Update: A reader points out that many economists are skeptical of such long copyrights.