I'm not sure about these... Here's what I THINK I know...
Roman Centurians don't get any bonus-- the attack rate only applies to barracks units, right?
Researching the shields doesn't do anything to help cavalry or chariots, right?
Researching hand-to-hand attack DOES help cavalry and chariots, right?
Also, does researching infantry armor apply to hoplites and other academy units or just barracks units?
Thanks!