I just finished reading Citizen of the Galaxy, written by Robert Heinlein in 1957. While it was an enjoyable read, it’s certainly not Heinlein most popular tale but it does have a solid character arc and engaging story with some lessons on duty and personal honor.
However, this isn’t a review; what I wanted to share was that I found it amusing that on page 130 in a list of the ships of the Free Traders, one name stood out: Firefly. [Actually, it’s not relevant to the story of CotG but still it’s in it.]
So there. Heinlein did Firefly first.