Both Uses

although
in
Black Like Me
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We discovered, incidentally, that although Mr. Allen was not involved in civil rights, as the officials stated (as though that were a good enough reason for getting killed!)†
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although = even though -- used to connect contrasting ideas
Men like Saul Alinsky and Father Groppi and others, who were regarded as heroes of the civil rights movement, began to fade from public view, although continuing to work privately.†

Definitions:

(1) (although)
even though -- used to introduce an idea that contrasts with or makes the main statement surprising

At the start of a sentence, although can play a role similar to words like however, yet, still, even so, on the other hand, or nonetheless—all of which signal contrast. In the middle of a sentence, although can sometimes be used where but or though might also work, but though or but often sound more natural. For example, "She's a great teacher, though not the most popular" is usually smoother than "She's a great teacher, although not the most popular."
(2) (meaning too rare to warrant focus)