Percy Lavon Julian born - April 11, 1899
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On this day in 1899, chemist Percy Lavon Julian was born. On this day in 1899, chemist Percy Lavon Julian was born.
This Day in History Class - Podcast készítő iHeartPodcasts and HowStuffWorks
On this day in 1899, chemist Percy Lavon Julian was born. On this day in 1899, chemist Percy Lavon Julian was born.