Hemline index

Okay, imagine you have a bunch of girls standing in a line. Each girl has a different dress or skirt length. Some might have long dresses that go down to their feet, while others might have short skirts that only cover their knees. The hemline index is a way to measure how long or short these dresses or skirts are on average.

Let's say that most of the girls in our imaginary line are wearing short skirts that only go to their knees. This means that the hemline index would be relatively low since most of the hemlines are closer to the knee than the ground.

Now, imagine that it's the 1960s and mini-skirts are all the rage. Suddenly, most of the girls in our line are wearing skirts that only cover their thighs or even higher! In this case, the hemline index would be much higher because the average skirt length has shifted upwards.

So, the hemline index is really just a way to track trends in fashion and see how skirt and dress lengths change over time. It's not a fixed rule, but rather a way to observe and analyze trends.