Name of pendulum that was the first demonstration of Earth's rotation but did not involve celestial observations?

Question

What was the name of the pendulum invented in 1851 that was the first demonstration of the Earth's rotation that did not involve celestial observations.

Answer 1

Foucault pendulum, named after the French physicist Léon Foucault, is a simple device conceived as an experiment to demonstrate the rotation of the Earth. While it had long been known that the Earth rotates, the introduction of the Foucault pendulum in 1851 was the first simple proof of the rotation in an easy-to-see experiment.

Reference: https://en.wikipedia.org/wiki/Foucault_pendulum