Inventor and entrepreneur Sarah E. Goode was the first African-American woman to be granted a patent by the U.S. Patent and Trademark Office, for her invention of a folding cabinet bed in 1885. She died in 1905. ((Her invention of folding a cabinet bed))
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Nordic countries rank so high on the happiness report because they have things like free education and healthcare, low crime rates, cushy social security nets, a relatively homogeneous population and they're fairly prosperous. ... "We find happiness in our own pursuits," like our professional work and passions.
To isolate them from the general population, Jews in Hitler's Germany were required to wear a yellow star which said "Jew" on it, so that they could be distinguished everywhere they went and they were more easily deported. This also happened in other countries in Europe during this time.