The document discusses the Celts and Thracians, two ancient Indo-European groups that inhabited Europe. It provides examples of Celtic monuments like burial mounds and graves containing rich equipment. It also shows images of Thracian treasures and weapons. The Celts were pushed back to the outskirts of Europe by Romanians and German tribes in 50 BC and eventually accepted Christianity. Both Celts and Thracians were known for being brave warriors with shared Indo-European roots, and later fell under Romanian slavery.