This is possibly the best-ever start to a judicial opinion. Honestly, I don’t see how it could be improved:

“Once upon a time, in a place now known as Montana, dinosaurs roamed the land. On a fateful day, some 66 million years ago, two such creatures, a 22-foot-long theropod and a 28-foot-long ceratopsian, engaged in mortal combat. While history has not recorded the circumstances surrounding this encounter, the remnants of these Cretaceous species, interlocked in combat, became entombed under a pile of sandstone. That was then . . . this is now.”