On September 13, 1921 , Sergey Pavlovich Nepobedimy, a designer of anti-tank missile systems, man-portable anti-aircraft missile systems, operational-tactical missiles, complexes and active defense systems, was born in Ryazan "Bumblebee", "Baby", "Arrow", "Needle", "Point", "Oka", "Chrysanthemum" are the names of only some of the systems he developed. By the way, his surname means Invincible. The Motherland awarded the designer the title of Hero of Socialist Labor