1. Throughout history
   "historically they have never coexisted peacefully" 
2. With respect to history
   "this is historically interesting"

See also: historical

Encyclopedia: Historically

• installment buying
• installment credit
• installment debt
• installment loan
• installment plan
• installment rate
• instalment
• instance
• instancy
• instant
• instant coffee
• instant replay
• instantaneity
• instantaneous
• instantaneous sound pressure
• instantaneously
• instantaneousness
• instanter
• instantiate
• instantiation
• instantly
• instar
• instate
• instauration
• instead