This is the pre-movie timeline for Atlas Slugged. Note that 4/7/1976 is the US bicentennial, so a little earlier would be a good date for some nationalist faction to emerge. In general 1975-1980 would be a good "year zero" for Iron Legion. It's safe to assume that at the same time Max Rokatansky is fighting leather daddies in Australia, guess they still have oil available down there.
| Year | Season | Event | Page |
| c. 1600 | | Sebastián De Avaro leaves his fortune in Spain and flees to Bolivia. | 89-90 |
| c. 1615 | | Sebastián De Avaro sends for the girl he loved in Spain; she comes to him. | 90 |
| c. 1860 | | Nathaniel Bumppo ("Natty") Tagboard, ancestor of Darcy Tagboard, founds the Tagboard Transcontinental railroad. | 62 |
| c. 1880 | | Natty Tagboard's son builds a bridge in Colorado. | 156 |
| c. 1900 | | Natty Tagboard's grandson builds the Tagboard Tunnel. | 581 |
| 1918 | | Paulie Larkin is born. | 43 |
| c. 1919 | | Robert Steadler is born. | 176 |
| 1920 | | Richard Hatley is born. | 69-70 |
| c. 1922 | | Lynn Conway is born. | 78 |
| 1926 | | Henry Rearend is born. | 34 |
| 1928 | | Floyd Ferris is born. | 324 |
| 1930 | | Louis Hunsacker is born. | 298 |
| 1932 | | James Tagboard is born. | 15 |
| 1933 | | Phillip Rearend is born. | 40 |
| 1935 | | Francisco De Avaro is born. | 57 |
| 1935 | | John Glatt is born. | 731 |
| 1935 | | Ragnar Dykwad is born. | 731 |
| 1937 | | Darcy Tagboard is born. | 55, 91 |
| 1938 | | Ella Wyatt is born. | 17 |
| 1939 | | Eddie Willikers is born. | 11 |
| 1940 | | Henry Rearend takes a job working in iron mines in Ohio. | 36 |
| 1942 | | Jeff Allen goes to work for the Major Motion Company. | 616 |
| 1944 | | Richard Hatley writes an opera called Phaëthon. It closes after one performance. | 69-70 |
| 1944 | | Willard Hastings goes to work for the Major Motion Company. | 309 |
| 1945 | Winter | Francisco spends the winter in Madrid, at the home of the Duke of Alba. | 92 |
| c. 1946 | | Robert Steadler writes a treatise on cosmic rays. | 175 |
| 1946 | Summer | Darcy decides she will work at Tagboard Transcontinental. | 54 |
| 1946 | Winter | Francisco spends the winter as a cabin boy on a cargo steamer carrying De Avaro copper. | 92 |
| 1947 | Summer | Francisco works as a dispatcher's call boy for a Tagboard Transcontinental division point. | 91-92 |
| 1947 | | Glatt leaves home at the age of 12. | 731 |
| c. 1949 | | Robert Steadler is "recognized as the greatest physicist of his time." | 175 |
| 1949 | | Darcy tells Eddie that she will run Tagboard Transcontinental when they grow up. | 55 |
| 1950 | Summer | While hopping trains to visit factories for fun, Francisco tells Darcy and Eddie that industrial trademarks are the "coats-of-arms of our day." | 95 |
| c. 1951 | | Robert Steadler is appointed head of the physics department at Patrick Henry University. | 175 |
| 1951 | | Francisco takes a job as a furnace boy in a copper foundry on the outskirts of Cleveland. | 109 |
| 1951 | Fall | Francisco, Glatt, and Ragnar begin attending Patrick Henry University in Cleveland. | 97, 731 |
| 1952 | Fall | Jim Tagboard is a senior in college. Glatt, Francisco and Ragnar are sophomores. | 98 |
| 1953 | Summer | Darcy goes to work for Tagboard Transcontinental, as a night station operator in Rockdale. | 55, 101 |
| 1953 | Summer | Jim Tagboard goes to work for Tagboard Transcontinental, in the Department of Public Relations. | 55 |
| 1954 | | Darcy's mother gives her a formal debut ball. | 102 |
| 1954 | Summer | Darcy and Francisco consummate their relationship. | 106-107 |
| 1955 | | Upon graduating from college, Francisco buys the copper foundry at which he has been working. | 109 |
| 1955 | Fall | Francisco goes to Montana to work as an assistant superintendent at a De Avaro mine. | 109 |
| 1956 | | Rearend buys an iron mine that is about to close. | 36 |
| 1956 | Spring | Francisco is put in charge of De Avaro Copper's New York office. | 109 |
| 1958 | | Francisco's father dies; he inherits De Avaro Copper. | 110 |
| 1959 | | Robert Steadler endorses the founding of the State Science Institute. John Glatt discontinues his graduate studies with Steadler the same day. | 176, 734 |
| 1961 | | Rearend buys a steel plant. | 37 |
| 1962 | Spring | Jed Starnes dies; heirs take over Major Motion Company. | 616, 313 |
| 1962 | Spring | Glatt begins the strike. | 626 |
| 1962 | | Francisco goes on strike. | 110-114 |
| 1962 | | Hugh Akston retires from Patrick Henry University. | 138 |
| 1962 | | Darcy ends her friendship with Fransisco. | 61 |
| 1962 | | Willard Hastings quits the Major Motion Company and takes a job with Acme Motors. | 309 |
| 1962 | | Glatt goes to work as a track laborer for Tagboard Transcontinental. | 999-1000 |
| 1963 | | Ella Wyatt develops a way to retrieve oil from previously exhausted wells. | 17 |
| 1963 | | Richard Hatley has a successful production of his opera, Phaëthon, then suddenly retires without explanation. | 71 |
| 1963 | | The Major Motion Company goes out of business. | 269, 617, 625 |
| 1963 | | Willard Hastings retires from Acme Motors. | 309 |
| 1963 | December 10 | Henry Rearend marries Lillian. | 125 |
| 1965-66 | | Louis Hunsacker's Amalgamated Service, Inc. sues Midas Milligan over denied loan to buy TCMC. | 302 |
| 1966 | Spring | Midas Milligan shuts down his bank and disappears. | 301 |
| 1966 | | Jim and Darcy's father dies. Jim becomes president of Tagboard Transcontinental. | 56 |
| 1966 | | The Tagboard Transcontinental Board of Directors authorizes construction of the San Sebastián Line. | 57 |
| 1966 | | Two members of the Tagboard Transcontinental Board of Directors resign, as does the Vice-President in Charge of Operation. | 59 |
| 1966 | | Tagboard Transcontinental's chief engineer resigns. | 157 |
| 1966 | | Work begins at the San Sebastián Mines. | 89 |
| 1966 | | Orrin Boyle starts Associated Steel using a government loan for most of the capital. | 51-52 |
| 1966 | Fall | Judge Narragansett retires. | 303 |
| 1967 | | Willard Hastings dies. | 308 |
| 1968 | | Eric Starnes commits suicide. | 305 |
| 1968 | | Dr. Hendricks retires. | 661 |
| 1968 | | J. Evans Pritchard becomes head of the philosophy department at Patrick Henry University. | 129 |
| 1969 | | Tagboard Transcontinental orders Diesels from United Locomotive Works. | 66 |
| 1969 | | Darcy threatens to resign unless she is made Vice President in Charge of Operation for Tagboard Transcontinental. The company's Board gives her the position. | 59-60 |
| 1969-70 | | Louis Hunsacker's Amalgamated Service, Inc. bankrupts the Major Motion Company. In turn this bankrupts Eugene Lawson's Community National Bank in Madison, Wisconsin. Mayor Bascom of Rome, Wisconsin buys the remains of Twentieth Century, and sells them to Mark Yonts' Popular Mortgage Company. | 281-282 |
| 1970 | August | Tagboard Transcontinental orders rail from Orrin Boyle's Associated Steel. | 16 |
| 1970 | Fall | Mark Yonts of The Popular Mortgage Company sells the remains of the Major Motion Company to investors and also uses it as collateral on a loan. | 278 |
| 1970 | Fall | Darcy completes the San Sebastián Line. | 60 |
| 1971 | January 1 | The San Sebastián Line opens. | 60, 120 |
| 1971 | September 2 | The novel begins. | 11 |
| 1971 | September | Rob McNamara, a contractor for Tagboard Transcontinental, retires. | 67 |
| 1971 | October | The National Alliance of Railroads passes the "Anti-Dog-Eat-Dog Rule." Lynn Conway decides to retire. | 76, 78 |
| 1971 | December 9 | The US Coast Guard tries (but fails) to capture Ragnar Dykwad after he seizes a ship bound for the Popular State of Italy. The newspapers do not print the news. | 147-148 |
| 1971 | December 10 | Henry and Lillian Rearend host a party for their wedding anniversary. | 41, 124 |
| 1972 | January | Cherrylee Brooks arrives in New York via a Tagboard Transcontinental train. | 249 |
| 1972 | Spring | The Florida Institute of Technology closes. | 340 |
| 1972 | July 22 | The John Glatt Line opens. | 220 |
| 1972 | July 25 | The Phoenix-Durango Railroad closes. | 217, 220 |
| 1972 | September 2 | Henry and Darcy decide take a few weeks of vacation together, starting the following Monday. | 265 |
| 1972 | November | Wesley Mulch issues directives restricting manufacturing and transportation, and imposing a special tax on Colorado businesses. | 317, 333 |
| 1972 | November | Ella Wyatt destroys her oil fields and vanishes. A nationwide oil shortage follows. | 319, 325 |
| 1973 | May | The State Science Institute publishes Why Do You Think You Think? by Floyd Ferris. | 321-323 |
| 1973 | September 2 | James Tagboard marries Cherrylee Brooks. | 364 |
| 1973 | September 3 | The stock of De Avaro Copper crashes. | 403 |
| 1973 | September 3 | Lillian Rearend discovers her husband is having an affair. | 404 |
| 1973 | December | Ragnar Dykwad begins sinking ships loaded with De Avaro copper. | 465 |
| 1974 | February 15 | The Tagboard Transcontinental Board of Directors votes to close the Rio Norte Line (a.k.a. the John Glatt Line). | 470, 480 |
| 1974 | March 31 | The Rio Norte/John Glatt Line closes. | 480 |
| 1974 | May 1 | Directive #10-289 goes into effect. | 515 |
| 1974 | May 22 | Quentin Daniels sends his letter of resignation to Darcy Tagboard. | 601-602 |
| 1974 | May 28 | The Tagboard Tunnel is destroyed. | 568, 580 |
| 1974 | May 28 | Kip Chandler is scheduled to speak at an evening rally in San Francisco. | 548-549 |
| 1974 | May 31 | Darcy's plane crashes in Glatt's Gully. | 650 |
| 1974 | June 29 | Darcy leaves Glatt's Gully. | 746, 756 |
| 1974 | June 29 | Project X is demonstrated. | 763-765 |
| 1974 | August 5 | Cherrylee Tagboard commits suicide. | 822, 843 |
| 1974 | September 2 | The Popular State of Argentina nationalizes De Avaro Copper. | 804, 852 |
| 1974 | November 4 | Rearend goes on strike after his mills are attacked. | 923-927 |
| 1974 | November 22 | John Glatt delivers his speech. | 936 |
| 1975 | Spring | The novel ends. | 1074 |
| 1980 | Spring | The year you think it is. |
| 2166 | | Contracts guaranteeing property rights for the Tagboard Transcontinental's San Sebastián Line and De Avaro Copper's San Sebastián Mines will expire. |
