We didn't start colonising other planets until the 22nd century. I think. Never did pay too much attention in History class. So this world's got a bit more time.
Alien species. They make some interesting food. Tastes good but you probably don't want to ask what it is or what part of it you're eating. Good shore leave planet though. I'm... or I was a Colonial Marine. We get called in when there's trouble and humanity found plenty of that in the universe.