Paul Morphy was born on 22 June 1837. He was American national and known as Chess player, Chess theoretician.
Alexander Israel Helphand was born on 08 September 1867. He was Belarusian national and known as Theoretician.
Alexander Israel Helphand was born on 08 September 1867. He was German national and known as Theoretician.
Alexander Israel Helphand was born on 08 September 1867. He was Russian national and known as Theoretician.
