Measuring 1,885 miles long, the rio grande river is one of the largest rivers in north america

That statement is true.
The river itself run from  the south west part of united states to the northern part of Mexio.
Currently, this River is the Fifth largest river in north America

hope this helps

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.