Queen Seondeok of Silla’s Astronomy Tower

Cheomseongdae is the world's oldest surviving astronomy tower built in the reign of Queen Seondeok of Silla (in modern-day Korea).
Cheomseongdae is the world's oldest surviving astronomy tower built in the reign of Queen Seondeok of Silla (in modern-day Korea).
Epistolae is a useful web resource for anyone looking for primary sources on medieval women.
The British Library have digitised and made available online a number of manuscripts owned by and relating to medieval women.