When I started sailing rope sheets and guys were normal. The rope was not very sophisticated, it stretched quite a lot. As the boats became more evolved wire sheets and guys became normal. It was 7×19 galvanized, because it was more flexible. It rusted quickly and broke down just as fast. Your hands were constantly torn by the meathooks.
In the photo at the right, we are sailing Independence off Marblehead in March. It is cold. Ted Hood would just keep sailing in a straight line; often we would not return until after dark. For amusement, we would spray the wire on the drum just before casting off. It would flame, from the friction of the wire slipping on the drum in the tack.