Which of the following describes the function of the Louvre when it was first built during the Middle Ages?
A repository for weapons.
A public facility that provided entertainment for the masses.
A fortress built for protection.
A meeting place for the leaders of a country.

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )

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