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A likely explanation, but isn't blue blood normally associated with royalty? regards Lynbarn (talk) 09:26, 20 June 2008 (UTC)
It was also my understanding that it represented elite bloodline. Like the term, red tape. Although there may not be any evidence for this for the time being that Wikipedia may accept. Neurolanis (talk) 23:05, 24 November 2008 (UTC)
The allusion to Agamemnon is fascinating, but surely in that play the "crimson path" is a hidden reference to the fact that the king is about to be welcomed in to a bloodbath at the hands of his wife - not exactly a good precedent for diplomatic hospitality! I suspect that the tradition has more recent origins. — Preceding unsigned comment added by 220.127.116.11 (talk) 12:29, 21 January 2012 (UTC)