What significant event took place in dave thomas's life in march of 1993?

Dave Thomas was a famous businessman, owner of Wendy. He was a successful businessman. He was a school dropout. So after reaching on his business peak, he realized that his business success might convince other teenagers to quit their schools and start a business. So he joined Coconut Creek High School as a student and earned a GED, General Education Development,  in 1993. This is the significant event that took place in his life in 1993

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