Hanseatic League dominated Northern Europe sea trade about 1350 – 1490.

The period of time that the Hanseatic League dominated the sea trade in Northern Europe was very short—only about 100 years from about 1350 until about 1490.[4] However, during that time the Hanseatic League had the effect of bringing an early “Renaissance” to northern Europe and in particular to northern Germany.

Pasted from <http://en.wikipedia.org/wiki/German_peasants_war_of_1524-1525>