Round 5: 490 BC to 205 BC
I started the round by making a number of recommended adjustments. First off, I pulled my forces back from the last Chinese city temporarily, until I have enough reinforcements to attack it. Just to save a couple of GPT.
I also decided that if I was going to run a specialist economy, it was high time I hired some Scientists.
Only the capital has a library so far, but it became a priority build for the other cities.
First, however, some of them needed monuments for quick border expansion and for the +1

. The whip was called for.
I also whipped the monument to completion in Guangzhou. Beijing's was almost finished, however, so I let it ride.
Then it was time for some tech trades. I went off to see Huayna first and made the trade we discussed.
Then I went to see Isabella for the usual post-Alphabet catch-up trade:
Sometimes it makes sense to hang on to Alphabet for a while,
if you have other techs you can trade. However, once I trade a tech to one civ, I think it makes sense to trade it to others if you can get something worthwhile for it. That way you get the diplomatic credit for the trade (as well as whatever techs you can glean). I could have obtained the same techs from Genghis, but I had an eye to keeping Isabella friendly as I discussed earlier.
Getting Polytheism opened the way to Literature and the Great Library, so I researched that tech next.
A few turns later, Genghis appeared to throw a monkey wrench into my plans to court Isabella:
Well, I can't really afford to go ticking of Genghis just now. He has metal and while I do too, I haven't built any units other than Immortals. So I caved. It's easy enough to make it up to Isabella if and when I convert to her religion.
While I had Genghis on the line, I decided to make a tech trade:
This was very much in his favour, obviously. I did it for the following reasons: (1) Since I'm trying to keep Genghis happy for now, I may as well accrue positive diplomatic modifiers with him; (2) the AI highly values Mathematics, so Genghis was probably going to pursue it before too long, and I may as well get something for it; (3) the trade routes might help my limping economy a little, though I only have 1 coastal city; (4) who else was I going to trade maths to now? Huayna already has it and Isabella's now giving me the cold shoulder.
Shortly after that, I had enough Immortals to feel confident about taking out their last city. I used two Flanking I Immortals, both of whom died, but did sufficient damage to allow two of their comrades (a Flanking II and a Flanking I/Sentry unit) to emerge victorious.
I razed it. I can't really afford another city just now and I believe it was Validator who pointed out that it should be re-founded later on about 2 tiles east.
I then set out west with the idea of pillaging some of Huayna's territory, but quickly changed my mind:
Not only did he have a Spearman there, he also had a Swordsman, and my Immortals would have a tough time with him. Huayna founded a city in his northern mid-west to get a source of iron.
I suppose I could have attacked anyway, but I would have lost nearly all of my Immortals, including my precious veterans. Also, most of my cities were building libraries, not units, in order to get the SE going. So, like the Persians after Plataea, I decided that discretion was the better part of valour and sent my Immortals home.
Things were better on the domestic front anyway. I was researching Currency, with my eye on improving the economy with trade routes, markets in cities (such as Goth) with Cottages, and following Currency, Code of Laws for courthouses. And I finished a helpful wonder:
That's a very good wonder to have anytime, but more so if you're shooting for a SE. I put the scientists back to work on hammer-rich tiles while building this wonder, but the GPP they built up before hand means I'll have my first GS very quickly.
And with the GL done, Huayna showed up and surprised me with his generosity:
Huh! Good thing I didn't attack him. The extra gold was very welcome indeed.
And I decided to give the Immortals one last hurrah. I sent them to that barb fishing village. I attacked, once again, with the Flanking units first. The Flanking I rookie fared better this time, surviving, no doubt, because the Archers are on flat terrain rather than a hill. Then I attacked with a Flanking II unit:
He won! I then was able to finish off the Archer the first Flanking I unit had weakened.
I was using my units with less than 10 XPs, notice, since those with more would not receive any benefit from winning a battle versus barbarians. 10 XPs, remember, is the upper limit you can get from barbs.
I also razed this city. Again, I'm thinking of my limping economy, though you can see that the research rate gradually improved as the libraries finished and I was able to run more scientists.
I'll follow this with a state-of-the-world post shortly.