UPDATE:
Played 4 turns. Got Masonry, and followed the PPP with no major events. City 5 is founded with 6 turns to size two thanks to the timely work boat.
No international events.
2 Eastern work boats are headed West. One is hanging out near Cahokia to keep an eye on SB in case he starts building up an army.
Shall I proceed with Mathematics, or do we want to pause and consider?
We got 198 gold now, and -32 per turn, so plenty of runway for tech.
I prefer to play through Math.