Its electrical system dated from the time of Edison.

This system dates from the Middle Ages, when the study of the liberal arts took seven years.

This tribal system dates back to the pre-Islamic era.

From this discovery the system dated, and in the course of the next century it replaced the conven- tional calendar entirely.

The system dates to the late 1890's when residents in more urban sections of rural areas wanted services like water and electricity, local officials said.

The system dates back to 1949.

The system dates back to the Troubles, and even I have to admit it's not all bad.

This system dates to the Preclassic, so I'm sure we're talking clay.

The system dates from the 1930's and is strictly monitored.

The system dates back to 1965.