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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.