Before 1962, sleeves were available in any length as long as it
was long or short. Then some crazy fool, probably off their head,
decided to split the difference and invented the Three Quarter Length
sleeve.
The sleeve now ended halfway down the forearm and
proved that once ladies were allowed to wear trousers, fashion anarchy
was just around the corner.
Like all great fashion developments, there was no
real call for the three quarter length sleeve, it just hadn't been
done before and before you knew it women were baring their wrists
but keeping their elbows under wraps.