1964 - MGS3
1970 - Zero disbands FOX. With the Philosophers Legacy, he founds a organization called the Patriots with Paramedic, Sigint, Eva, Big Boss, and Ocelot.
1972 - Solid and Liquid are born. Their names are David and Eli. When Big Boss finds out about the cloning, he leaves Zero along with Eva and Ocelot.
1974 - Peace Walker. Zero's agent Paz is rooted out. Zero's development of AIs that can carry on his will are being worked on by Strangelove.
1975 - Ground Zeroes. Skullface destroys MSF in his war against Zero. He attacks Big Boss because he knows BB is important to Zero. Big Boss and Venom are knocked into a coma. Miller is in bad shape but survives. Zero and Eva hide BB and Venom in a British hospital in Cyprus.
1976 - Zero contacts Ocelot and tells him about his body double idea: he doesn't hate Big Boss and in fact wants him to live to carry on the Boss' legacy. The body double (Venom) will be meant to protect the real BB, draw fire away ,and spread the legend. Zero then contacts Miller and tells him to protect Big Boss when he wakes up. Miller doesn't know about the body double and even though he was at odds with Zero at the end of Peace Walker, he's in no position to bargain so follows Zero's orders. Finally, Skullface infects Zero with a parasite. More on this in a bit.
1977 - Zero visits Big Boss during his coma and leaves him a tape explaining the body double plan. Zero himself then becomes comatose.
1984 - Phantom Pain. Here we go:
- The hospital staff do facial surgery on Venom to make him look like Big Boss.
- Venom escapes the hospital with Ishmael, who is Big Boss. The hospital is attacked by Cipher which is now currently commanded by Skullface.
- After a car crash, Big Boss escapes with the help of Ocelot. Then Ocelot hypnotizes himself to make himself believe Venom is the true Big Boss and helps Venom escape.
- Venom builds a mercenary organization and builds up the legend of Big Boss. Along the way he meets Eli (David never left the US), Quiet (who wanted to assasinate BB under orders of Skullface but has a change of heart and helps Venom), and most importantly: Code Talker.
- Code Talker did tons of experiments on this parasite which can be transmitted through language. He knows what Skullface is up to: a plan to spread his virus all over the world.
- Huey develops R&D for Venom but is banished after the staff find out he killed Strangelove. Strangelove had largely completed work on the Patriot AI (more on this in a bit)
- Venom and Huey kill Skullface. Mantis is involved as well.
- In a final mission, Venom learns the truth about the body double from a tape.
- Cipher as an organization still exists but is now run by the Patriot AIs.
- AIs summarized: Strangelove invents them; Sigint oversees them; Emma finishes the work by the time MGS2 rolls around.
- Miller, Big Boss, and Ocelot go back to the US. Big Boss becomes commander of FOXHOUND, which he initially established in the first place with Roy Campbell (this was from Portable Ops) Ocelot remains faithful to BB while Miller becomes sympathetic towards Venom. Miller and Ocelot decide that the 'time of the Sons' will soon arrive and that they will each pick one to support.
1991 - Eli was raised in England, watched from afar by Ocelot, and David was raised by multiple people but especially Miller. Both Solid and Liquid fight during the Gulf War.
1995 - Venom threatens the world with Outer Heaven. Big Boss sends Solid Snake to kill him.
1999 - Big Boss threatens the world with Zanzibar. The Patriots send Solid Snake to kill him via FOXHOUND. Miller helps Solid.
2005 - Miller is killed by Ocelot.
And the rest is history. I left out stuff but there is the summary. If you're wondering where Solidus is, he is not mentioned.