akots
Poet
Well, not a good news at all. Indeed exceptionally bad news. Here is the Diplo screen with C3B. What does it tell us? First, they are in Middle Ages. Which means they researched Currency as they were going to or may be Construction and bought either Construction or Currency, respectively, from CDZ. Use of tech calculator then tells us that both Monotheism and Engineering are at 771 beakers and Feudalism did not change in price. We also know that CDZ had Monotheism from previous turns which means that C3B got Engineering as a free new era tech. Hence, situation at present is that CDZ has Mono and C3B has Engineering and they have not traded these techs yet.