Why is the Finnish flag flying today?

In Finland the flag is raised to the flagpole several times in a year for many different reasons. But what are the flag days marked to the calendar and why are they celebrated?
#Liputuspäivä #Flagday #SuomenLippu #FinnishFlag
Sources:
yle.fi/uutiset/3-11846507
almanakka.helsinki.fi/fi/lipu...
www.infofinland.fi/fi/tietoa-...
almanakka.helsinki.fi/fi/lipu...
intermin.fi/suomen-lippu/lipu...
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