Its hard to say, though usually it's credited to Anton LaVey. He played no small part in making Satanism what it is today. He founded the first public church in San Franciso in 1966. Before him any Satanic groups would be better described as "covens", with each one having their own unique set of beliefs and being limited in numbers.
An example of one of these groups, and probably the most famous, were the hellfire clubs. Though the reason for their fame is probably because their members were very much a part of high society. Benjamin Franklin, Lord Wharton, (RT Hon.) Francis Dashwood, John Montagu (4th Earl of Sandwich) etc...
Another thing to consider is that alot of different religions have a God figure and a Devil figure. For the most part when somebody says Satanism they would usually think of a group of people worshipping the devil that Christians believe in. However, unusual as it seems, there are groups who worship the equivilient of Satan from these other religions but still use the name Satanist for themselves.
LaVeyan Satanism (the original) does not.
No, Mike Portnoy is not a satanism.
no shes beyond that its like super satanism
There are many different religious cultures in the US.A few could be:ChristianProtestantCatholicJewishIslamicMuslimPaganism (no, this is NOT the same as Satanism)Wicca (no, this is NOT the same as Satanism)Satanism
There are no "sacred texts" of Satanism; all works and books on Satanism and fairly cheap to purchase on most web-shops.
There are no solid links to Satanism and heavy metal, heavy metal artists use Satanism insignias to get publicly.
There are no miracles of Satanism, if anything, you create your own miracles through your own will.
Satan Wants You by Anthony Lyons, or his other works on Satanism. He covers the history of Devil Worshiping, Satanism, and other things related.
Satanism is the belief of worshiping Satan (the devil) to receive a good life in hell.
Satanism
No.
Satanism