Any time you make a herculean effort, or complain about spartan conditions or order a sandwich, you are using an eponym...

Memories of an Irish village education in the 1950s.

We've come a long way from scribes using little brushes made of camel hair!

...it was a first draft and a bit rough round the edges, but it was there.

...the frustration of emotions caged inside the head may lead to explosions that maim more than the body.