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The first hint that a relationship may be in trouble is often
Eighteenth Century
The period from January 1, 1701, to December 31, 1800, in the Gregorian calendar, marking the 18th century.
Ethnic Differences
The distinctions and diversities that exist among various ethnic groups, often pertaining to culture, language, or identity.
Sex Ratio
The demographic concept indicating the proportion of males to females in a population.
Health and Longevity
The study and practices pertaining to maintaining good health and achieving a long life.
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