History of Slovenia - Sistory portal represents the main research infrastucture for historical resources and rare historical literature in Slovenia. It also hosts digital archive for all main Slovenian historian magazines. It has bilingual interface and storages over 40000 different publications, mostly text in pdf format. Above its once primary goal to serve as a digital library for history related research is also a main source for TEI-XML annotatted text databases in constant development, based on the diverse digitised and digital material - such as stenographic minutes of the Slovenian parliament (1945-2018). It also hosts the database of the population censuses from 1830 to 1937, most of them transcribed and accesible for the researchers in machine readable format, database of the deathtoll of WW II for Slovenia and TEI - XML based list of losses in the WW I for Slovenia, not to mention smaller scale databases, which are mostly the result of digitally enabled research. It's advanced archival system allows long-time preservation for all collected data, available in OA.