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Where did Birger Jarl build fortifications in Finland?
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During his 1249 expedition to bring Finland into the Swedish sphere, Birger Jarl established fortifications in two primary locations:
- Tavastia (HĂ€me): He built a fortress in this region, which was already Christianized at the time.12
- Northern Coast of the Gulf of Finland: He constructed several fortifications along this coastline, an area where Swedish settlement began on a mass scale.12