What follows below is the rough timeline from the past century in the Marvel Reboot Universe. Note that not every event will be revealed in Year One of the Reboot, though hints may be given. For the most part, with major exceptions where indicated, many of these events are a matter of public record. "Year One" is to be considered September 2010 through September 2011.
Many of these events are intentionally similar to those of published Earth-616 events. In fact, the point of divergence can be said to be 1945, when Captain America is frozen in Earth-616, though the effects probably were not felt on a wider scale until 1957. The overall shared history with Earth-616 diverges completely in 1986, following the deaths of the First Line and their allies (and several enemies).
1914 - Lord John Falsworth is killed by Dracula and becomes a vampire.
- Falsworth takes the name Baron Blood at the start of the Great War.
1918 - Challengers of the Unknowable formed; included in the lineup are Princess Fen of Atlantis, Captain Leonard MacKenzie, and at least one Immortal Weapon.
1920 - Challengers remove their exploits from history; even the memories of those on the team are altered to prevent them from knowing about their own exploits; reasons and means unknown.
1922 - Prince Namor born in Atlantis (Feb 22).
1936 - Howard Stark, Sr., founds Stark Industries.
1939 - Johann Schmidt becomes the Red Skull; Dr. Enskine defects to America.
- Prof. Horton creates the android Human Torch.
- Steve Rogers becomes Captain America.
- Prince Namor attacks New York City; first Human Torch/Sub-Mariner fight.
1941 - US enters WWII.
- Formation of the Invaders and Super-Axis.
1945 - Human Torch kills Hitler.
- Invaders morphs into All-Winners Squad.
- HYDRA goes underground, seemingly fracturing into many cells.
1947 - Namora first comes to the attention of the surface world.
- Super-Heroes of Europe, the premier international team, formed.
1949 - Monster Hunters formed; exploits rarely came to others' attentions.
1952 - Steve Rogers steps down as Captain America and marries Peggy Carter.
- All-Winners Squad dissolves.
- Yellow Claw comes to public attention, opposed by FBI agent Jimmy Woo.
1954 - Atlas formed.
1957 - Formation of the First Line.
- Namor recalled to Atlantis to be crowned King.
- SHIELD formed and headed by Jimmy Woo.
1958 - Monster Hunters first come to public attention; many adventures told as drive-in B-movies for the next two decades.
1962 - Atlas breaks up.
- Savage Land discovered by Matthew, Lord Plunder.
1971 - Steve Rogers briefly re-dons the guise of Captain America to locate his missing son in Vietnam.
1972 - President Nixon demands break-up of the First Line; First Line goes underground instead.
- Howard Stark, Jr., helps invent the ARC reactor and takes over Stark Industries when Howard, Sr., retires.
1975 - Atlantis accepted into United Nations.
1986 - Most of the First Line and several allies (and a few enemies) die preventing an unprovoked invasion by the Skrulls; the invasion itself kept classified by world governments.
- Inhuman refuge of Attilan transported to the Blue Area of the Moon.
1987 - Shadowguard, Rust Belters, and SHIELD's SPEAR team formed to fill the void left by the deceased First Line.
- Alien life officially admitted to exist when Starbot of the Shadowguard outs himself as an alien robot on live television.
1990 - Kevin Plunder orphaned in Savage Land; Kevin would later become Ka-Zar.
1991 - Cain Marko becomes the Juggernaut, though his existence is not known for another two decades.
1996 - SHIELD split off from the FBI; Jimmy Woo retires, his place as director of SHIELD is taken by Henry Peter Gyrich.
1997 - SHIELD's SPEAR team forcibly disbanded by Director Gyrich.
1998 - Friendship between Charles Xavier and Magneto sours.
- Magneto leaves the Shadowguard; begins recruiting his Brotherhood.
2002 - Charles Xavier, now crippled, begins to convert his family mansion into the Xavier Institute for Gifted Youngsters.
- Kim Possible gains fame as a "teen hero".
2003 - Dr. Doom conquers Latveria with popular support.
- Rust Belters disband
2006 - The Xavier Institute goes public as a school for mutants.
2007 - Shadowguard retires.
2008 - The Fantastic Voyage Project takes formation under Dr. Reed Richards at NASA; Reed enlists his old friend Ben Grimm to pilot the prototype.
- Living Pharaoh kidnaps Alex Summers; first organization of Xavier's students into a fighting force that would one day become the X-Men.
2010 - First flight of the Fantastic.
- Formation of the Fantastic Four heralds the dawn of the New Heroic Age.
- First class of the Xavier Institute graduates; 5 graduates form X-Men.
2011 - Formation of the Avengers.
- First documented Kree invasion thwarted by Captain Marvel.