Ancient Societies is the first released mod that comes from the mega-mod, BeyondCraft (Now Bloom & Gloom), but it's all about finding old relics and artifacts from the ancient Minecraft world. This mod includes:
Mushlings
Spears
Fossils
Excavations
Knights (and the armor!)
Runes
Tiles
And it's only halfway done! Watch out for the other BeyondCraft mods coming out. The second one will be Wilderness. See you there!