The Elder Scrolls' lore, the people of Skyrim and particularly the people of Falkreath hold will tell you that Falkreath has been the site of many many battles throughout history and the bodies of most of the men, women, elves, orcs, khajiit and argonians that have died in those battles are buried in the Falkreath graveyard; that of course is why the graveyard is so big. The Falkretah graveyard has its share of infamy throughout all of Skyrim and arguably throughout all of Tamriel, so visiting it in game feels a little exciting.
Until you get there; and see around thirty graves.
Reminds me of the 'epic large scale battles' that have been throughout the Elder Scrolls series.
The largest involving roughly thirty men.
Bethesda seems to like claiming that certain events, battles, places etc have an incredible scale when it is really not the case. A bit of a downer.