The chain most likely overflowed the top of the basket and went down into the water pump. That was the rattling sound you heard. The chain may still be in the pump or maybe it made it through and went down the drain.
If you hear anymore rattling the next time you use your washer, then the chain is still in the pump housing. The chain could already have caused damage to the pump, like causing it to start leaking, or maybe not. But if it is still in there then it could still cause damage.
So if you do hear any rattling, turn of the washer and remove the drain hose from the pump and try to pull out the chain.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.