I hadn't noticed in the screenshot that the "mountains" to the west were actually a Natural Wonder so i didn't try to move NE to get more room and settled in place. First scout popped a goody hut for free warrior while i was building the second one and glimpses of tundra to the north convinced me not to produce a 3rd scout. I sent my scouts S and SW while the warrior was gathering the "goody huts" to the north. I met 2 independent powers, one of which was hostile so i opened civics with Discipline to get my first Legatus with the plan to train him on IP troops for a free settlement while building a Granary in Rome, followed by a real settler, the only one i would build for the entire Antiquity! My initial plan was to settle the tundra to the north and possibly move to Russia in Modern Age.
Things quickly became "interesting" as Ashoka (who's supposed to be the peaceful one) forward settled my northern tundra, turning unfriendly due to proximity in the process

This was an insult to Rome and i wouldn't let that go unpunished

so i denounced him to be able to go into a formal war once my Legatus was done training on Longcheng. My plans would change as Arna, the cultural CS, decided to raze Ashoka's new town

so eventually i could settle Ostia where i originally planned next to the natural wonder while my Legatus who managed to hit level 3 just before Longcheng turned friendly moved to the south of the small lake to settle Capua at a place where i could use the navigable river to reach the west coast of the continent. Meanwhile Rome was busy building the Hanging gardens while i was researching Dsicipline mastery for Gates of all Nations. I wasn't actually decided for a military game but the AIs were quite aggressive so i figured free war support wouldn't hurt me.
At that point Friedrich decided to offer a new training target for my Legatus as he moved an army to my door. I denounced his military presence and he immediately declared war on me, giving me free war support. It was turn 45 and i didn't actually attack anyone, but they were all testing my patience
The war against Friedrich proceeded really well. I killed his units and proceeded to move to capture the stupid fishing town he settled on the small peninsula south of Rome, bringing two galleys to help me in the process but his capital was quite a bit harder to take down as it was tricky to move my legions and archers next to Waset. Once again my two galleys proved very useful since he was settled next to a navigable river and didn't bother building naval units. It took me some time but i eventually managed to take his first two settlements, but not before he planted some more in the southern part of the continent, out of my reach.
That's when Lafayette decided to also become a pain. Despite plenty of available space in the middle of the continent he moved a settler all the way to just west of Capua and settled Korinthos there, immediately turning angry at me because of borders touching. That was enough! At that point i had researched the Wheel so i immediately queued 3 ballistae in Rome (not 2, not 4, just 3 ! I guess you can all see the idea here

)
I had Legatus, i had legions, he was hostile. I declared a formal war and quickly took Korinthos but then Ashoka declared war on me and came with his elephants to try and take it back from me but i placed a wall of legions with archers behind that he could never break, then slowly pushed up towards his lands. Moving one tile and then immediately fortifying doesn't make for a fast march forward, but it sure makes for a steady and relatively safe one.
Upon reaching the doors of Pataliputra, i noticed there were 3 wonders there so a plan formed in my head. I was at 4/7 for Cultural Golden Age. If i took Ashoka's capital i would be at 7. I doubled checked, the victory condition was clearly written as "House 7 World Wonders", not "Build 7 World Wonders". So that was the plan, capture Pataliputra and get a second GA (i already had the Military one thanks to all those aggressive AIs forcing me into wars

). But i just didn't want to take it immediately, i tried to get a few more codices and resources to get the second Milestone for Scientific and the Economic GA. I started a long siege of the Mauryan capital and even thought he managed to kill a bunch of legions and a ballista with his endless flow of elephants, he never managed to drive me away. Managing the crisis which threw some unhappiness at my already over-cap empire was a little trickier but i managed to keep my settlements loyal and finally, at turn 148, after i completed the Mathematics mastery for the 2 missing codices (i was really behind in science), i took down Pataliputra, gaining access to a couple extra resources for the 2nd economic milestone, as well as 3 World Wonders ... which didn't count towards Culture victory
Oh, well, that's only a small setback on my way to total world domination. The Exploration age is coming ...