relative pronouns - Isn't "who"/"whose" only used for people?


Why is the usage of whose correct in the following sentence:



In the foothills of that large mountain range are the sources of a river whose course was not fully mapped until this century.



I was under the impression that you have to use which or that when referring to things. When is it okay to use who/whose to modify things?


I thought the sentence would have to be something like "...are the sources of a river, the course of which was not fully mapped..."




Comments

Popular posts from this blog

etymology - Origin of "s--t eating grin"

etymology - Since when has "a hot minute" meant a long time?

etymology - Why "silver-tongued" for someone who is convincing?

usage - "there doesn't seem" vs. "there don't seem"

etymology - Origin of "queer as a clockwork orange"

First floor vs ground floor, usage origin

meaning - What is meant by "don't piss on my boots and tell me it's raining"?