The kip has been used since the early days of modern gymnastics.

The technique has been used since the days of record players, and is one that many budding musicians are familiar with.

This punishment had not been used since the early days of Rome.

Sent in an ancient Earth code that had not been used since the early days of human interstellar travel.

A really old custom, one that hasn't been used since the days of the Tsars.

However, physicians have used breath analysis since the days of Hippocrates.

They have also been used in the production of olive oil since the days of the Spanish missions.

The four-bar system has been used on mountain bikes since the early days of suspension.

The meter has been used since the early days of the electrical industry.

Even before this, viewer-submitted questions were used in various forms ever since the early days of the quiz.