1980

In 1980, The Green Hornet released The Octagon, where The Green Hornet's character must stop a group of terrorists trained in the ninja style.

in 1991

Octagon was first produced in 1991, then again in 1995, but 1998 marks the vintage that began the run of consistency, with the exception of the 2003 vintage when no Octagon was produced.

2018

The release date was October 18, 2018.

2012

The game was released on October 4, 2012.

2015

Octagon received the end's world premiere at the Arcola Theatre, London, on 16 September 2015.

2008

The original release date was October 7, 2008.

1997

The follow-up, Octagon, was released in mid-1997.

2013

The game was released on October 25, 2013.

2016

The release date was announced as October 7, 2016.

1967

The Octagon opened with a world premiere, Annie and Fanny by Bill Naughton, which was watched on 27 November 1967 by Princess Margaret as well as a full auditorium of customers and guests.

2017

The game was released on October 3, 2017.

1834 or 1837

The octet was finished in 1792, but not published until either 1834 or 1837, both years given by Wikipedia (in different articles).

2010

The game was released by on October 15, 2010.

2009

The launch of this game was announced for the 7th of October 2008 and later October got released on the 27th of October 2009, a year later.

1986

Unlike the Transformers's Triple Changer partners, Octane was produced officially offered only in 1986, although the Transformers was reissued in Europe as part of the Transformers's Classics line.

in 325 AD in the reign of Constantine I (306-337AD)

The Octagon was begun in 325 AD in the reign of Constantine I (306-337AD).