Sundow Universe - Timeline

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This is the Timeline comprisiong of G.I. Joe, The Transformers, Inhumanoids, Jem and the Holograms and all their tie-in materials.

This timeline tries to be the definitive Cartoon Timeline, placing together USG1 and JG1 and all the comics and video games with a plot and settings vaguely inspired by the Cartoon! When dates conflicts, the USG1 dates will be used thanks to its status as the Second Pillar Reality

Legend
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G.I. Joe = 00FF00
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TV Series
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Simplified Order
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x01, "The Cobra Strikes"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x02, "Slave of the Cobra Master"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x03, "The Worms of Death"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x04, "Duel in the Devil's Cauldron"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x05, "A Stake in the Serpent's Heart"
G.I. Joe: A Real American Hero - The Revenge of Cobra 1x01, "In the Cobra's Pit"

 

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TIMELINE
1982
September
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x01, "The Cobra Strikes"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x02, "Slave of the Cobra Master"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x03, "The Worms of Death"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x04, "Duel in the Devil's Cauldron"
G.I. Joe: A Real American Hero - The M.A.S.S. Device 1x05, "A Stake in the Serpent's Heart"

1984
September
G.I. Joe: A Real American Hero - The Revenge of Cobra 1x01, "In the Cobra's Pit"

 

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(Reserved for Space)

 

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(Reserved for Space)

 

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"The Russian delegate at the Tanu Island conference looks like Leonid Brezhnev, who had died in November 1982, almost a year before this episode aired."

Slave of the Cobra Master

The search for three precious elements begins as the Joe team races to complete their own M.A.S.S. Device! In the Cobra Arena of Sport, Duke is forced into a battle with the giant. Cobra Commander and Destro control the two combatants via the mind controlling headbands. With joysticks in their...

gijoe.fandom.com

Interesting....

EDIT: There is no record of a "Tanu Island Conference" in the 1980s; it is possible the name was misspelled, as information for Tanna Island (Tanu is a potential misspelling), in Vanuatu, does not mention a specific conference in that decade, nor are there records for any conference on Badu Island, Torres Strait, which is another potential interpretation of "Tanu."

well... Let's go with Septemeber 1982 since it's a year where Brezhenv is alive and the month where the episode aired!