I had no idea. 'Course I was watching a program on Discovery, A&E, NatGeo or one of those channels which described in detail the fact that some ancients dug up the remains of their family members or loved ones each year on the anniversary of their death and had a formal get-to-gether and dinner with the remains being the guest of honor. Is there no end to it?
"In detail?" Documentaries provide brief introductions at best.