The practice of abortion probably dates back to the earliest human societies.

The first incident of a professional charging the mound has not been identified but the practice certainly dates back to the game's early days.

In fact, the practice dates back to the Neolithic period.

This particular practice could not have dated from prior to around 1820, when British whalers began to frequent the area.

The practice dates back to the time the bridge was built, but the first recorded instance of someone diving off the bridge is from 1664.

The practice dates back at least as far as 1916.

This practice dates back to the early Christians who used to pray in their homes even before churches were built for public worship.

The practice dates back to 1566, the time the bridge was built, and it was held every summer ever since in front of the huge audience.

The practice would have dated back to the Early Medieval Period or even older.

The practice dates back to at the least the Roman Empire.