Stamen Gigov Grigorov (Bulgarian: Стамен Гигов Григоров; 27 Oct...
wikipedia - 28 Oct 2020Stamen Gigov Grigorov (Bulgarian: Стамен Гигов Григоров; 27 October 1878 – 27 October 1945) was a prominent Bulgarian physician and microbiologist. He discovered the Lactobacillus bulgaricus bacillus, used in the making of yogurt.