Ok answer to the necktie question

Neckties were originally invented because dress shirts worn by the upper classes, way back in the day did not have buttons to close them completly, the tie then was a piece of cloth designed to cover the remaining bare area in the middle of the chest and stomach. They were worn with the bottom actually tucked into the pants.

Of course as time progressed and buttons came into being the tie remained as an ornamental symbol of the upper classes.