Yes, I guess it's good that the other civ's are making peace. Although this will speed research they wont get any leaders. France, England and Persia all must have gotten Flight on 1360 AD as they didn't have it when I bought Combustion (I checked post-trade), it is a little strange that these 3 civs seem to have been following each other in techs, they must be good friends. They all got Combustion on the same turn too.
Two other points, Persia is a scientific civ and will get a free tech. They could get Fission this way, I guess you'll know if you get a "Persia has started the UN" type message. Also, we may want to start giving gifts (or very good trades) to some of the other civ's to get them on our side of the UN vote. We need a majority, right? Once before I thought I had a diplo victory in the bag, the turn before I finished the UN I gave lots of stuff away and I lost the vote! well I didn't win it anyway - there was no majority. I tried a reload as a test and if I didn't give England anything they would have voted for me, I guess they were insulted by the bribe? I ended up winning by domination or conquest (I forget). This was one of my first Diety games, and I think on an older patch. I have only won by diplo once and there were only 3 (or 5) civ's left (inc. me), so I don't have much experience with it. Has anyone else had this experience?
One final note: France is still at war somewhere south of us. Keep on the lookout for leaders comming north!