Who were the Cathars? Inside the religious group that dared to challenge the Catholic Church

In the 13th century, thousands in France were investigated, massacred, or even burned at the stake by the Catholic Church.

The Horus Heresy books reading order: Where to start and where to stop with Warhammer 40,000's massive prequel series

There are 64 Horus Heresy books, give or take, depending whether you count the novellas or the graphic novel or the Primarch spin-offs. The point is, there are too many for any no ...