It is the oldest continually operating school in Washington state.

It was the longest continually operating oil well in the world.

It is home to some of the oldest continually operating businesses in the area.

It is the longest continually operating settlement house in the country.

At the time, it was Wisconsin's oldest continually operating college.

The plant operated continually for its first two years.

It is the nation's oldest continually operating amusement park, first opening in 1846.

At the time of the company's acquisition it was considered the world's oldest continually operating public relations firm.

At that time, it was Queenslands oldest continually operating school.

The system operates continually with a varying headway throughout the day.