I played up until T111 some week(s?) ago, and remember that I think that I screwed up the opening royaly.
I settled on that PH and went for fishing. I think I made that choice because the celts usually struggle with commerce and the seafood helped with that.
After AH I went for sailing of all techs, with the idea to connect with Vienne, and enable settlement on the island early on.
Think I chopped some chops into SH in Vienne for failgold (that was a heavily forested area iirc), and finished a monument.
I stared to feel really bad about the game when I realized I didn't have agriculture for the corn. :|
I was in a very strong position though. Bulbed philosophy, built some shiny wonders (GLib, MoM, Sistine and Taj).
Was in GA for most of the latter part of the game, and in a constant tech lead.
Was first to economics, physics, communism and I won lib and took scientific method.
By a stroke of completely undeserved luck though, Darius had sprinted to alphabet and rescued me.
With all the happyfaces, I decided to give AP a try. I even tried to build AP but lost it by 2 turns or so.
But I got resident and put forth the vote.
Wait.. what? Why can't I win diplo?!
AAaaah, right, everyone needs to have at least one city with the AP religion. Argh!
Well.. I fixed that untill it was time to do the vote again.
But apparantly, by then Kublai had overpassed me as #1 in pop. Aaaaaarhg!!
By now, I have changed course to win via UN instead.
I even got a GEng to rush it abit with.
But since I didn't have that GEng for my 3people GA, that was severely delayed. Should probably just have build UN in some hammer heavy city instead.
I was mostly must mashing "end turn", so didn't notice anyone plotting. I had signed defensive pacts with everyone so this came as a total suprise.
Total world war.

I bribed Kublai against SHaka too, to keep me safe.
I had 1 gallic warrior and one frigatte appart from my lioncloth warriors.
And there we have it.

I think I had a pretty easy game, despite the early screwup. I think most came from settling Vienne as a nice blocking city early on, and after that getting diplomacy under wraps.