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If there are monthly or annual fees you could consider closing it. It would continue to report for another 10+ years. Otherwise leave it open. Also, check out the closing credit cards stickied at the top of the board.
Unless there is an AF, I would keep it.
The history will only help your credit score.
Call Cap 1 to confirm it is still open. I would use the card once or twice a year to make sure it is fully factored into your credit score.