One of my AoE4 builds!
Age up
spam Mansions, they also shoot arrows. start trade for gold, do a mine upgrade
Age up twice for gold generation on mansions and unit production from palace
you also want the upgrades from landmark2, 150%extra charge damage
Probably the fastest imperial age.
Probably the fastest 200 unit population cap when also produce units from landmark1.
upgrades, and start spam farms and stables for more Hobelars