GT Nexus was created in 1998.
It is one and the same device. The GT-i9020 is the Super AMOLED version of the Nexus S. The GT-i9023 is the Super Clear LCD version, and was for the European market.
Shimano Nexus was created in 1995.
The Infernal Nexus was created in 2001.
Nexus Music was created in 2002.
Nexus Polaris was created in 1997-08.
The Final Nexus was created on 1988-12-01.
Ultraman Nexus was created on 2004-10-02.
Nexus S was created on 2010-12-16.
Galaxy Nexus was created on 2011-11-17.
Nexus - film - was created on 2011-08-16.
Nexus One was created on 2010-01-05.
Zero Nexus was created on 2008-03-12.