Like the Ballyvourney reconstructions, there is no evidence that the Birmingham Burnt Mound site was used as a "sweat lodge".
First of all, I'm not an archeologist nor ethnologist. AFAIK there are proofs that sweatlodges were used all over Europe and Asia for both hygienic and spiritual purposes. I can be wrong at this, but again: this is my current knowledge in this field.
To make things clear: I'm not the owner of taraka.pl website and I'm not Wojciech's attorney
However, I'm proud to be one of his friends. I have no connections to Mr Woliczko.
All this quite tough discussion is a surprise for me, I've never thought that using a sweatlodge can means insulting someone in some way or breaking some laws. On the contrary, there are many activities taken from many cultures, activities which have spiritual part, e.g. drumming (learnt on the basis of Syberian shaman drumming). There's even a vision quest tradition in Polish culture, you can see such quests e.g. in our legends and there are recreated now, with some success. These are not Indian vision quests, however you can find some similiarities: hunger, long walk alone, meditation, singing, in rare ocassions hallucinogen mashrooms are used (we have plenty of those).
I must admit you treat words "Indian sweat lodge" with great care, but I have never seen or took a part in sweat lodge that was meant and told to be "Inipi" or "Lakota sweat lodge" or even "native Indian sweatlodge". Of course you can argue that any activity which is related to "Indian sweatlodge" is forbidden is some way. I think we should distinguish two things:
1. native Indian sweatlodge or Lakota/Dakota Sweatlodge or Inipi: native Indian ceremony connected with a tradition and culture of the Lakota/Dakota/other nation.
2. Indian sweatlodge, meant as purification ritual or ceremony with hot stones, steam and fire, performed in temporary shelter. "Indian" in the sense that the technique is used, not your culture or your gods or your language. This technique seems to be lost in Europe, some evidences show that is was avaiable and used at some point in the past.
There is a movement, called "Friends of Indians": a set of people fascinated in Native North American Indian culture and recreating some of native Indian traditions. I have no connection with and very little knowledge about this, I've heard about pow-wows, dances and even recreating dresses, but no details, sorry. Sample site:
http://indianie.eco.pl or
http://www.indianie.infoIt seems to me that Mr Woliczko is referring to this kind of things in his post.