DIARY
LETTER 4
2014.08.06
Nasir al-Din Tusi (Astronomer in Greece. the 13th century)
He translated a book of geometry from Greek into Arabic.
by Pen books （What is Islam?).
www.pen-online.jp/magazine/penbooks/
Calender
| 月 | 火 | 水 | 木 | 金 | 土 | 日 |
|---|---|---|---|---|---|---|
| « 9月 | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | |||