Women's solo sex can be taboo even today. But in 17th century England it featured in many texts from poetry to medical books, suggesting knowledge or even acceptance of female self-pleasure.
It's been 100 years since the murder of Marxist revolutionary Rosa Luxemburg.
May 16 marks the 300th anniversary of the first woman to write a mathematics textbook.
In history, as in historical fantasy, women have an uneasy and dangerous path to power.