Who was the first woman to be ordained as a Bhikkhuni in the Buddhist Sangha?

At which of the following Buddhist sites were women ordained into the Sangha for the first time?

The entry of women as a “Bhikshuni” into the Buddhist Sangha was allowed by Gautam Buddha at –

Who was the President of the First Buddhist Council?

Where was the first Buddhist Council convened?

Who presided over the First Buddhist Council?