 Complete the following phrase:  Helsinki was established as a trading town by King Gustav I of Sweden in 1550 as the town of Helsingfors, which he intended to be a rival to the Hanseatic city of Reval today known as Tallinn. In order to populate his newly founded town, the King issued an order to resettle the bourgeoisie of Porvoo, Ekenäs, Rauma and Ulvila into the town. Little came of the plans as Helsinki remained a tiny town plagued by poverty, wars, and diseases. The plague of 1710 killed the greater part of the inhabitants of Helsinki. The construction of the naval fortress Sveaborg in Finnish Viapori, today also Suomenlinna in the 18th century helped improve Helsinkis status, but it was not until Russia defeated Sweden in the 