怎么翻译“他是第几个发现这个地方的”？

真被楼主问倒了。想了好半天才回过味来，因为老外不是这样说这话的。老外会说how many people before him.所以译成：
How many people before him find out this place.

见另一例句：
how many people before you are waiting to be served.

what is his order