9500 B.C.
Ghosts of Gobekli: Fallen trying to create a "breeding stock" and city for themselves; possibly even an Altar Piece as well. [Edensons]
References:March 1, 207 A.D.
Pullo's Tower: Roman soldiers battle boredom utilizing a military "tradition" and have a run of bad luck.
References:October 31, 1918 A.D.
https://historicengland.org.uk/whats-new/news/roman-graffiti-to-be-recorded-hadrians-wall-quarry/
Halfway through the Hundred Day's Offensive: Germans summon horror to help turn the tide of the war. [WWI]
References:Summer 1999 A.D.
https://en.wikipedia.org/wiki/Hundred_Days_Offensive
Mask of the Bat God: Matt Olsen's concerns about an associate's recent removal of an ancient mask from it's holding place. [Orbis Oserver]
References: