Hungarian Inventors’ Day, observed in Hungary every June 13, celebrates the contributions of inventors and honors Albert Szent-Györgyi, a renowned Hungarian biochemist known for discovering vitamin C. This annual holiday was initiated by the Association of Hungarian Inventors (MAFE) in 2006 to mark the 20th anniversary of the organization. The date commemorates the national patent Szent-Györgyi received for synthesized ascorbic acid on June 13, 1941. Szent-Györgyi, born in Budapest in 1893, conducted significant research that led to the isolation of ascorbic acid from bell peppers and paprika, which contributed to the work of British chemist Walter Norman Haworth, culminating in a Nobel Prize for both in 1937. The day serves to recognize the importance of innovation and the legacy of Hungarian inventors.