Paying Vikings for Protection
The Danegeld was essentially medieval protection money paid to Vikings to prevent them from burning towns. While we think of it as a bribe, it later evolved into a permanent tax used to fund standing armies for national defense.
During the ninth through eleventh centuries, European rulers frequently paid massive amounts of silver to stop Viking raids. Eventually, kings realized they could just turn this emergency tribute into a regular national tax called heregeld. It is fascinating that a policy intended to appease invaders actually helped build the foundations of organized royal taxation. This shift shows how even the most desperate bribes can permanently reshape government systems.
Source: Danegeld