The furlong is a subsidiary unit of length in the United States customary system, defined as 220 yards. Over the course of history, it has been defined in three different ways:
The furlong is a subsidiary unit of length in the United States customary system, defined as 220 yards. Over the course of history, it has been defined in three different ways:
The furlong is a subsidiary unit of length in the United States customary system, defined as 220 yards. Over the course of history, it has been defined in three different ways: