Evidence for a specific culture of BDC region

In order to have a culture that is transmitted over millennia some conditions have to be met:

• Continuous living, see here ;
• Contains information with high value for survival;
• Transcends spoken language;

I present here an example of a ritual still performed today in several places on the south-eastern side of the Carpathian Mountains, that according to Discovery Channel is also performed in the Dinaric Alps (content source needed). 

A piece of news caught my attention this year with a striking image about a traditional New Year bear dance.

Alecsandra Raluca Dragoi's image taken in Comanesti, Romania, won 2015 National Geographic Traveller UK’s photo competition 

The way I see this ritual, it has to do with the Master of the Beasts, as Mircea Eliade, in the trilogy History of Religious Ideas, describes a central figure in hunter-gatherer beliefs. The story behind this ritual is that the Master of the Beasts takes control of the most powerful animal (in this region the bear) to transfer his might to the community that he visits once a year.

For me, this is an example of ritual that spiritually connects us to the hunter-gatherers who lived here 10 millennia ago.

I will search for more examples, perhaps from current religious practices, that perpetuate much older rituals through syncretism.

Your suggestions are much appreciated.