Complex sentence: The Seattle Dojo, located at 1510 S. Washington in the Squire Park neighborhood of Seattle, Washington, is the oldest judo dojo in the continental United States, having been founded sometime before 1907 in what is today the International District.
Split into simpler sentences: The Seattle Dojo is located at 1510 S. Washington in the Squire Park neighborhood of Seattle, Washington. It is the oldest judo dojo in the continental United States, having been founded sometime before 1907 in what is today the International District.