The Question and Answer section for The Ramayana is a great resource to ask questions, find answers, and discuss the novel.
The Ramayana and the Mahabharata are the oldest epics. I am unable to find any evidence that either of these texts has been proven to be the first.
There are 18 puranas in the Hindu religion.
Sita was literally discovered by King Janak in a furrow on sanctified ground. He raised her as his own.