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1919: A Black Woman Revolutionized Heating Forever Alice H. Parker changed the way the world stays warm. In 1919, at a time when women couldn't vote and Black Americans faced systemic barriers everywhere, Parker patented a revolutionary gas-powered central heating system that used air ducts to distribute heat throughout buildings. Her design—Patent Number 1,325,905—became the foundation for every modern heating system we use today. Born in 1895 in Morristown, New Jersey, Parker graduated with ho
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1919: A Black Woman Revolutionized Heating Forever Al…
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