Welcome to a place where curiosity is the key. Focus is on primarily nordic stamps from the start in 1850s and up to approximately 1900, or as many call it, the classical era.
On this site you may browse different posts on the history of Scandinavian stamps, fetched from several sources. Some of these sources are available online, but most are books published over the years by knowledgable philatelists in their studies of classical stamps.
New research are seldom seen these days, but this should not discourage us from digging into the details and stories around the historical use of stamps. Surely new information will keep on emerging, now that we have digital tools and easier access to historical records.
For now, I will summarise and repeat what is known already, but mostly unavailable to new philatelists internationally. Books in the period of 1900 to 1960s are few and usually in Scandinavian languages.