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An excess of phlegm produced a phlegmatic, or calm, temperament; of blood a sanguine, or passionate, one; of yellow bile a choleric, or irascible, one; and of black bile a melancholy, or depressive, one. The Greek physician Galen connected the theory to that of the four elements (see elements, the four): the phlegmatic was associated with water, the sanguine with air, the choleric with fire, and the melancholic with earth. An imbalance of the humours could supposedly be treated by diet.
The ‘Sun of May’ was added in 1818. The blue bands are a shade known as ‘celeste’, said to be the colour of the sky which inspired Argentine revolutionary Manuel Belgrano before battle. Effective date: 16 August 1985.
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