All Facts.

A unique opening ceremony in many ways.

First use at an Olympic Games of the Olympic flag with the five rings signifying the union of five continents, created by Baron de Coubertin; the first time a competitor took the Olympic oath and the first release of doves as a symbol of peace.

The role of the National Olympic Committees (NOC).

For the first time, only the National Olympic Committees could enrol participants.

Ceremonies.

Antwerp 1920. Opening Ceremony of the Games of the VII Olympiad. The Belgian delegation parades in the Stadium.
Official opening of the Games by: His Majesty The King Albert
Lighting the Olympic Flame by: A symbolic fire at an Olympic Summer Games was first lit in 1928 in Amsterdam.
Olympic Oath by: Victor Boin (water polo/fencing)
Official Oath by: The officials' oath at an Olympic Summer Games was first sworn in 1972 in Munich.