The Type II supernova that created the Crab Nebula (image below) was seen by Chinese and Arab astronomers in the year A.D.1054 Because the star is 6,500 light-years away from us,we know the star exploded in the year: 
Definitions:
Traditional Nuclear Family
A family structure comprising two parents (traditionally male and female) and their biological children, representing a common social unit.
Egalitarian
Describes a belief in or the practice of equal rights, opportunities, and treatment for all people, without discrimination based on social class, gender, or other differences.
Male Primary Provider
A social and economic concept that men should be the main earners or breadwinners in a family unit.
Total Fertility Rate
A demographic measure that calculates the average number of children a woman is expected to have during her lifetime, based on current birth rates.
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