This is the result of the Byzantine culture, the orthodox church was established within the byzantine empire, they took upon the greek alphabet and it widely spread through their missionary works, many eastern European countries adopted the orthodox church and one of them happened to be russia
In 1942, 29 Navajo men joined the U.S. Marines and developed an unbreakable code that would be used across the Pacific during World War II. They were the Navajo Code Talkers. ... The Code Talkers conveyed messages by telephone and radio in their native language, a code that was never broken by the Japanese.
George III became king of Great Britain in 1760.