History of the Greek alphabet retained the sound. A symbol based on the left-hand half ( ├ ) of the letter Η was therefore sometimes used to indicate the presence of where necessary, and its absence was indicated by a symbol based on the right half. During the classical period, ΕΙ came to be pronounced and ΟΥ came to be pronounced , Υ having meanwhile moved to . By about 200 BC, a system of diacritical marks was invented, representing the tone accents in use in Ancient Greek. This also helped to indicate the length of the vowels Α, Ι, and Υ in certain cases
Combat Terrorist Organization Combat Terrorist Organization The Combat Terrorist Organization () was a Russian neo-Nazi gang active from 9 August 2003 to 2006. It was formed in Saint Petersburg by two members of the Mad Crowd skinhead group, namely, Dmitry Borovikov and Alexey Voyevodin. The gang used exceptional secrecy to hide their activities. In contrast to other fascist groups, there were no skinheads among its members. The group also used exclusively confidential mobile phones to communicate. Authorities also discovered that they met very rarely in the open and avoided talking about ideology or tactics near power sockets, preferring to write their words on