Roulette was invented by French mathematician Blaise Pascal. The popular game of chance was a byproduct of his experiments with perpetual motion. All cheerleaders were male in 1898. Now, about three percent are. The baseball home plate is 17 inches wide. Moderate dancing burns 250 to 300 calories an hour. The U.S. motto, E pluribus unum, means "out of many, one." It first appeared in a Roman poem as part of a recipe for making a salad. In Latin, the word "disco" means "I learn." Forty-two percent of American women are able to belch on command. In scientific terminology, the Sun is considered a "Yellow G2 Dwarf." The saying "the sky's the limit" originated in Don Quixote. Because of outrageously high costs in California during the Gold Rush of 1849, miners sent their laundry to Hawaii for washing and pressing. Two-thirds of the world's lawyers practice in the United States. A cow has four stomachs: the rumen, reticulum, omasum and abomasum. Before the year 1000, the word "she" did not exist in the English language. A group of moles is called a "labor." "Dacryphilia" is arousal from seeing tears in the eyes of a partner. Mosquitoes hibernate.