I was trying to figure out if Software Recommendations existed when this question about game recommendations was asked (7 Dec 2011). So, that led me to try to find out when Software Recommendations was founded. I don't see information about it in the help center (and the about link at the bottom just says when Stackoverflow was founded).
Software Recommendations is pretty new to me, but I suppose it could have been around a while.
The answer can be found by looking up the corresponding page on Area 51 (where new sites are proposed and getting started). There you can see it was proposed on 2013-10-09 and that its public beta started 2014-02-18.
The first question can be found by writing this URL with identifier "1", because identifiers are incremental:
https://softwarerecs.stackexchange.com/questions/1
... which is Software to backup Android phone ROM
It was asked on February 4 2014 at 19:12 (presumably a few minutes after the private beta started).
