The Bowman is the weakest of the archers. The Bowman cannot be upgraded. However, you can research the Improved Bowman, which is stronger than the Bowman. Other archers include the Chariot Archer, Elephant Archer, and Horse Archer.Archers fire arrows at enemy villagers, military units, boats, and buildings within their range.Researching Alchemy increases attack strength. Ballistics increases accuracy. Leather Armor, Scale Armor, and Chain Mail increase armor. Woodworking, Artisanship, and Craftsmanship increase range.