Why are ragdoll cats called ragdolls?

Ragdoll cats are best known for their docile, placid temperament and affectionate nature. The name 'Ragdoll' is derived from the tendency to go limp and relax when picked up, just like an old fashioned doll made from and stuffed with rags. In fact, it is not uncommon to see a Ragdoll cat held by its owner as if it were a baby - on its back, legs in the air, limp and calm as can be.  Most cat breeds would never tolerate that. The breed is particularly popular in both the United Kingdom and the United States.