You may be interested to learn about the founding of Rome. Check out the top of this poster: http://www.olympicartifacts.com/wp-content/uploads/2012/07/1...
From my recollection, the brothers became strong from drinking the wolf's milk; strong enough to build a city destined for greatness. (They were also saved by gods?)
Considering that most early civilization formed around fresh bodies of water and the positive connotation that barbarians (feral children) were integrated into society to become Kings is rather pleasant.
[0] https://en.m.wikipedia.org/wiki/Romulus_and_Remus
[1] http://www.ancient.eu/Mesopotamia/
[EDIT] I took too long to reply, I guess, and my comment was applied to the wrong thread. I apologize for the confusion.
The comment was meant for @rangibaby
I had no idea this had happened before or even that it could happen. Is this not a very rare event?
I'm guessing that the survival rate for feral children can't be very high, and even more so if the child gets to grow up.
Fascinating subject albeit very... discomforting.