[2] She received primary education in different cities of Turkey,[2] since her father Osman Nuri Tekeli was working as a governor in various provinces.

[3] Sevim Tekeli began her career as a research assistant of Prof. Dr. Aydın Sayılı at the Department of Philosophy in Ankara University in 1952.

[4] Sevim Tekeli's works mainly focus on the history of Ottoman astronomy, particularly on the studied by the famous astronomer Taqi al Din.

[3] She continued her research on Taqi al Din and published another book, The Brightest Stars of Construction of the Mechanical Clocks that was based on her professorial thesis.

İlk Japon haritasını çizen Türk Kaşgarlı Mahmud ve Kristof Kolomb'un haritasına dayanarak en eski Amerika Haritasını çizen Türk Amiralı Piri Reis = The oldest map of Japan drawn by a Turk Mahmud of Kashgar and the map of America by Piri Reis, Ankara: Atatürk Kültür Merkezi.

16’ıncı yüzyılda Osmanlılarda saat ve Takiyüddin’in “mekanik saat konstrüksüyonuna dair en parlak yıldızlar = The clocks in Ottoman Empire in 16th century and Taqi al Din’s the brightest stars for the construction of the mechanical clocks.