1) I'm little bit confused by the warrior movement. I think you said you first went North. Now he is down south, so I can only assume that you basically retraced your steps as opposed to actually scouting. A more circuitous route to the W and S from that Northern position would have been best. Again you want the warrior to not go to far..say 10 tiles in either direction, but you want to always be revealing the fog.
Retracing my steps is exactly what I did. I was going on the notion to scope out my second city location faster but can see why fog busting is the way to go. A copper revealed itself in that area as well. Would be nice to know what's up there.
3) Civs revealing themselves early on a Pangaea map is not concerning at all. It is great. Either it gives you a chance to kill someone fast or get foreign trade routes up faster.
That's good to know! I look forward to seeing/hearing more about that.
On the game:
I took my warrior east, away from the panther and exposed a bear. It went away and there was a 50/50 chance I was going to see him again by moving forward. I did so into a forest to see it waiting for me. The bear attacked and I won with no damage.
At the beginning of turn 20, my exploration looks like this:

Notice the area 2S of my Capital was a copper. Very neat trick!
I stand with a warrior ready to continue exploring by "zig zag", a worker waiting for an order (since copper revealed itself, should I go straight to improving it or still chop the forest 1SW of my capital?). Normally, I would wait a turn before I whip before switching to slavery. Does that make sense or should I change sooner?
Misc: Greece found Buddhism on turn 19.
Save game: View attachment Forum Game Turn 20.CivBeyondSwordSave