A flamingo that never learned to stand on one leg, that spent most of its time in the water with both legs immersed, would lose somewhere around 40-70% more body heat than a flamingo that did learn this behavior.
The ideas of the Enlightenment played a major role in inspiring the French Revolution, which began in 1789. After the Revolution, the Enlightenment was followed by an opposing intellectual movement known as Romanticism.
The Enlightenment is commonly dated to the middle of the eighteenth century and the activity of the philosophes, the French rationalist philosophers who fully articulated the values and consequences of Enlightenment thought.