What is the Botella de Leyden and what is its function?

A Botella de Leyden is a simple capacitor that stores electric charge that can be released through a discharge rod.
The Botella de Leyden was first manufactured around 1745 and is still used in laboratory experiments.
The Botella de Leyden is a device that stores energy in the form of an electric field.
The Botella de Leyden is a device that converts electrical energy into mechanical energy.