Keywords
- Sphaera mundi (Sacro Bosco, Joannes de)1
- Spring1
- Sufism--Doctrines1
- Sundials1
- Theoricae novae planetarum (Peurbach, Georg von)1
- Timekeeping1
- Trigonometry1
- Turkey1
- Turkic Mongol Domination (Armenia : 1045-1522)1
- Ulugh Beg, 1394-14491
- Universals (Philosophy)1
- Vellum bindings1
- Watermarks1
- Weather forecasting1
- Weights and measures1
- Yugas1
- Zij-i jadid-i Sultani (Ulugh Beg)1
- Zodiac1
- devotional calendars1
- dialogues1