Publisher's blurb:
A system-agnostic sourcebook in two volumes, for any historical or fantasy game.
Early Middle Ages presents a real-world account of Europe from the dawn of the 9th century through the 11th century. Based on the academic work of Henry Osborn Taylor, it focuses on the effect of Christianity on scholarship and culture, for better or worse, with both a sympathetic eye toward the people of the time, and a critical judgment that can only be gained in retrospect.
The result is a look at the period that goes beyond the lineages of kings and chronicles of various wars. This volume is filled with information that can be mined for worldbuilding details usable in your own settings. There are colorful characters that can be adapted as villains and non-player characters. Story hooks abound, either as background details for your game world, or as adventure seeds for player characters to pursue.