Classic: Time Travel

Classic: Time Travel (1991, 1995, 2020) has been effectively replaced by Infinite Worlds. All of the martial with-in been updated for 4e in the later with some additional information regarding worlds from Classic: Alternate Earths and Classic: Alternate Earths 2 also added.
It was preceded by the 23 Skidoo setting which eventually appeared in the first of the Pyramid magazine series.
It's main purpose in 4e GURPS is to support the idea of a Homeline-2 as there are just too many inconstancies between Classic Homeline and 4e Homeline. 
*Homeline-2 was far more aggressive then 4e Homeline in finding realties. If Infinite Worlds had continued at the pace Classic Homeline was at they would know of 60 more timelines than they do.
*Homeline and Centrum of Infinite Worlds learned of each other 2018GURPS Infinite Worlds p 8 and 2015GURPS Infinite Worlds p. 48 repectively while the Classic versions learned of each other 2006Classic: Time Travel p. 104 and 2003Classic: Alternate Earths 2 pg 121 respectively.
*Classic Centrem-Beta (Centrum Beta-2) is in 1910Classic: Time Travel pg 108, 15 years ahead of the Centrem-Beta in 4e which is at 1895GURPS Infinite Worlds p. 120
*Asside from a handful of exceptions (Such as Merlin-1, Reich-5, Shikaku-Mon, and Etheria) all the realities in Classic and 4e have the same year and Etheria saw the passage of only one year.
==References==
Category:Classic
Category:1991
Category:1995
Category:2020