Yes - for example, you could say: 'In the olden days', and it would make sense.
No email "in the olden days".
what did thety wash their clothes with back in the olden days
Horse and buggy
Wood and coal.
By writing letters
Yes, they needed them for letters.
yes but it deepends what date
Men use size 7 basketballs Women use size 6 basketballs
They didn't use this term back in "the olden days." It's a modern term meaning to wait for a minute.
there was barter system