who sparked the 30 year's war?

What sparked it? The change in religious services started by Luther and his allies. The Catholics, including the Pope, and his king of the area, Charles, didn't like it.

Here are some excellent sites on the Thirty Years War. Particularly, check the first three.

http://www.google.com/search?hl=en&ie=ISO-8859-1&q=Thirty+years+war&btnG=Google+Search

The 30 Years' War was sparked by a series of complex political and religious factors. It began in 1618 and lasted until 1648, primarily taking place in the territories of modern-day Germany. At its core, the war was a combination of conflicts between different Protestant and Catholic factions, as well as struggles over political power and territorial disputes.

To find out who sparked the 30 Years' War, you can refer to historical accounts and analysis. It is generally believed that the conflict was triggered by an event known as the "Defenestration of Prague" in 1618. This involved the Bohemians, who were primarily Protestant, throwing representatives of the Catholic Habsburg monarchy out of a window in Prague. This act of defiance against Catholic authority led to a spiral of violence and warfare.

However, it is essential to note that the 30 Years' War had deeper causes, such as the competing interests of European powers, religious tensions, and ongoing struggles for political and territorial control. Therefore, attributing the entire war to a single individual or event would be an oversimplification.