Deltaterasserne is one of the largest archaeological sites in Peary Land, the northernmost part of Greenland. These terraces were inhabited circa 4000 - 3700 BC by Independence I and Independence II cultures.
Deltaterrasserne was constructed of large, terraced stones, ranging from 5m to 23m above sea level. Knuth named the site's ruins and caches in order of their descending elevation. These are scattered over 800 m of beach terraces in a multicomponent campsite. The highest of the terrace sites is named Terrace A. Its three ruins contain tent rings, central hearth, charcoal, and a gravel berm periphery, along with a meat cache. Terrace B is located most centrally within the site and also has the most features, including open-air box hearths and dwellings. Terrace C contains only one feature, a cache with a paved lower floor. Terrace D contains caches, dwellings, and an open-air hearth. Terrace E is the lowest of the terraced ruins and features a Stone Age tent ring. A striking resemblance has been noted between the Deltaterrasserne dwellings with those from northern Eurasia.
Hundreds of organic, faunal, and lithic artifacts were recovered. Organic artifacts included items such as axes, charred driftwood, pointed sticks, pins, and birch bark rolls. Faunal artifacts included bird, fish, and mammalian remains. Lithic artifacts include burin spalls. The most common artifacts were microblades, burins, flint flakers, and bone needles. Some needles exhibited rectangular eyeholes, typical of Independence II culture, while others had round eyeholes, typical of Independence I culture. Found at Terrace B was a side prong fragment for a leister or bird dart.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.