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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).