Stamps
Scott: 5600 A2691
Scott: 57 A13
Scott: 58 A13
Scott: 59 A13
Scott: 60 A13
Scott: 61 A13
Persian mathematician, astronomer, and sultan. While his contributions to astronomy are more significant than mathematics, he did create trigonometric tables for sine and tangent which were correct to eight decimal places.
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First Day Covers
| Stamp | Description |
|---|---|
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Russia, 5k, 1987 Scott: 5600 A2691 |
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Uzbekistan, 30t, 1994 Scott: 57 A13 |
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Uzbekistan, 35t, 1994 Scott: 58 A13 |
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Uzbekistan, 40t, 1994 Scott: 59 A13 |
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Uzbekistan, 45t, 1994 Scott: 60 A13 |
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Uzbekistan, 60t, 1994 Scott: 61 A13 |