The Baldur's Gate saga began with Baldur's Gate 1. Tales of the Sword Coast was released as an expansion to BG 1.
After that, BG2 came along, followed by it's expansion, Throne of Bhaal.
It is all the same story (beginning in BG1) so you might want to play through the entire series if you are interested in starting at the beginning, but it is by no means absolutely necessary. =)
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Erydian<br />
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