Tresoar [SEP] inception
be searched and accessed online. 
Tresoar was created through a merger in 2002 of the Frisian Literature Museum with the Provincial Library and the National Frisian Archives. Tresoar functions as a regional historical center with a small exposition hall (the "treasure room"), and is located at Boterhoek 1, Leeuwarden.
Since 2007, all 255 editions of the Leeuwarder Courant have been digitized and placed online.
See also.
- Historisch Centrum Leeuwarden
External links.
- Treasure room
components of the 57th Operations Group, placing them all under a single organization. Has trained combat aircrews in adversary threat tactics since its inception.
History Lineage.
- Established as 57th Adversary Tactics Group on 31 Aug 2005
History Assignments.
- 57th Wing, 15 Sep 2005–Present
History Components.
- 64th Aggressor Squadron: 15 Sep 2005–Present
- 65th Aggressor Squadron: 15 Sep 2005–26 September 2014
- 527th Space Aggressor Squadron: 14 Apr 2006–Present
- 547th Intelligence Squadron, 15 Sep 2005–2014
- 57th Adversary Tactics