Welcome Elebar!
The SRD is a set of d20 rules put out by Wizards of the Coast for free. You can download them from the Wizards website, and there are other sites that have easier reading interfaces for it (since it's free to use, it's free for anyone to put on their websites, use in books, quote on message boards, etc). It's not quite so obvious if you don't know about it.
Welcome nosygirl!
There was a gold dragon born in the Age of Anger who was an extreme optimist. Everyone thought he was foolish, but this dragon wanted to fix the problems of the world, ending evil. Of course, this wasn't so easy. There's a lot of eivl. This dragon grew to become a paladin, and was a great warrior for Good and such. When he became a greatwyrm, he looked back on his life and realized that
he was, in fact, angry. The anger is between Good and Evil, not being able to live together. After all, 'Evil' doesn't mean 'angry' necessarily. He was killing Evil people all this time, he was actually perpetuating everything. He looked back on his life with sadness and prayed to the deities for guidance. But he heard nothing. He prayed and prayed, but he did not know what to do. Spring gave away to summer heat, which brought on the golden leaves of summer, only to be covered by the snow of winter. Seasons passed, and seasons turned to years. He was paralyzed in prayer. Eventually, dust and dirt settled on him. He became an indistinguishable part of the terrain.
To this day, somewhere, there is a mountain with the greatest greatwyrm dragon inside it, consumed by Nature, the Entity of Balance.
(I made that up. I'm sure there are tons of stories about greatwyrms, but there's no way to know what you're talking about. There are no famous greatwyrm stories that every D&D player knows. Though, anyone can come up with one at will.
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