Herta Charlotte Heuwer owned and ran a food kiosk in West Berlin. She is frequently credited with the invention of the take-out dish that would become the world-renowned currywurst, supposedly on 4 September 1949. On 29 June 2003, The day before what would have been her 90th birthday, a plaque was dedicated in her honour on the corner of Kant and Kaiser Friedrich Streets, Berlin where she had her kiosk. The original Currywurst was a boiled sausage, fried, with a sauce of tomato paste, Worcestershire sauce, curry powder and other ingredients. In January 1951, Heuwer registered a trademark for her sauce, Chillup. She moved her business to a larger facility at Kaiser-Friedrich-Straße 59, which, during its heyday, was open day and night and employed 19 saleswomen. A plaque at this location commemorates the woman and her invention. On 30 June 2013, the centenary of Heuwer's birthday, was celebrated with a Google Doodle. Other sources claim that currywurst was invented in Hamburg. Author Uwe Timm contends in his novel The Discovery of Currywurst that he had eaten currywurst in Hamburg as early as 1947, but the inventor of Currywurst in his novel, Lena Brücker, is an admitted literary license. However, that did not prevent the former Hamburg Senator of the Interior Ronald Schill from honoring Lena Brücker in 2003. Food historians such as Petra Foede believe that, as with most culinary creation myths, several rather than a single person were involved in developing this dish, sausage sellers experimenting with various spice mixes in order to replace the tomato ketchup that was unavailable during the immediate postwar years.

https://en.wikipedia.org/wiki/Herta_Heuwer