So way back when, I went to England with my parents and as we were running about looking at historical monument and eating crisps I realized: Most of these cities are built on dead guys! I don't mean in the figurative sense either. I was walking into a cathedral and looked down to see that the floor was actually paved with headstones.
I suppose this is within reason as the association with dead and church is a close one. However, on a tour of a small coastal town, I was introduced to a pastor's garden what is fertilized by the bodies of drowned sailors. Apparently drownings were so common that they would collect the bodies in rows, shake some lye and dirt over them then place another row of bodies on top.
These sightings were followed by barrow mounds, massive cemeteries, elaborate sarcophagi and various other creative ways of storing a body. I can't help but wonder if burial wasn't entirely related to social factors but in part a mentality of "Well this is a really small island and we have A LOT of dead people; where do we put them all??". Obviously the enormous burial mounds had some serious though behind them but think about it: they had the Black Plague and more wars than you can shake several large, pointed sticks at. It's surprising that every inch of England doesn't have a corpse under it!
Corpse garden? Just saying it doesn't really say "pre-meditated burial ritual".