- 1900
| Jul 13 | (Triangle) Plans for a new building for Joseph Asch at Greene Street and Washington Place in New York City are approved. | Ref: 87 |
- 1901
| Jan 15 | (Triangle) Construction of the Asch building is completed. In 1906, the Triangle Shirtwaist Company will open a factory on the eighth floor. | Ref: 87 |
- 1909
| Jun 10 | (Triangle) (day unspecified) A fire prevention expert writes a letter to Triangle Shirtwaist management suggesting that they hold a meeting to discuss improved safety measures, but the letter is ignored. | Ref: 87 |
| Sep 10 | (Triangle) (day unspecified) Local 25 of the ILGWU declares a strike against the Triangle Shirtwaist Company. By November, the strike spreads to other shirtwaist manufacturers. The strike ends after thirteen weeks that saw over 700 striking workers arrested. | Ref: 87 |
- 1910
| Oct 15 | (Triangle) The Triangle Shirtwaist Factory passes a routine fire inspection. | Ref: 87 |
| Nov 25 | (Triangle) A factory fire in Newark kills 25 workers, setting off renewed calls for improved fire prevention efforts. | Ref: 87 |
- 1911
| Jan 15 | (Triangle) The last time an accumulation (over a ton's worth) of cutaways is picked up from the Triangle Shirtwaist factory by a dealer. (The heavy accumulation of cutaways will help fuel the fire two months later.) | Ref: 87 |
| Mar 16 | (Triangle) A report on fire traps is published. The report argues that many New York City building lack "even the most indispensable precautions necessary." | Ref: 87 |
| Mar 25 | (4:40)(Triangle) Shortly before quitting time of 4:45, a fire breaks out on the eighth floor of the Asch building, housing the Triangle Shirtwaist factory. The fire will claim 146 victims, mostly young women. | Ref: 87 |
| Mar 25 | (4:46)(Triangle) NYFD Company 72 arrives at the Asch building. The fire is spreading towards the ninth and tenth floors, also the workplace for Triangle Shirtwaist Company employees. Employees on the eighth floor head down, those on the tenth head to the roof, many on the ninth floor have nowhere to go. | Ref: 87 |
| Mar 25 | (4:57)(Triangle) The last of dozens of bodies falls to the sidewalk from the ninth floor ledge. | Ref: 87 |
| Mar 25 | (5:05)(Triangle) The fire is effectively brought under control. | Ref: 87 |
| Mar 25 | (5:15)(Triangle) The fire is described as practically "all over." | Ref: 87 |
| Mar 25 | (6:20)(Triangle) Fire fighters make their way to the badly burned top three floors of the Asch building, finding dozens of badly burned bodies as they do so. | Ref: 87 |
| Mar 25 | (6:45)(Triangle) Throngs of grieving people push through police lines and move toward the Asch building. | Ref: 87 |
| Mar 25 | (8:00)(Triangle) By now, 60 bodies have been lowered from the upper floors. The Death wagon returns to the Asch building for its second load. | Ref: 87 |
| Mar 25 | (8:15)(Triangle) A Triangle Shirtwaist worker stuck in water in the bottom of an elevator shaft is rescued by fire fighters. | Ref: 87 |
| Mar 25 | (9:05)(Triangle) A row of lights strung around the outside of the Asch building is turned on. | Ref: 87 |
| Mar 25 | (11:15)(Triangle) The last body is taken down from the upper floors. | Ref: 87 |
| Mar 26 | (Triangle) More than 100,000 grieving relatives and curious members of the public stream through a temporary morgue on the Twenty-sixth street pier, identifying loved ones or just looking. | Ref: 87 |
| Apr 02 | (Triangle) A meeting is held to discuss concerns over lack of safe working conditions in New York City's factories. Resolutions are passed demanding new legislation. | Ref: 87 |
| Apr 05 | (Triangle) A funeral parade is held for the seven bodies of fire victims that remain unidentified. | Ref: 87 |
| Apr 11 | (Triangle) Isaac Harris and Max Blanck, co-owners of the Triangle Shirtwaist Company, are indicted for manslaughter in connection with the fire deaths. Reports indicate that the escape route from the ninth floor was blocked by a locked door. | Ref: 87 |
| Jun 30 | (Triangle) New York creates a Factory Investigating Commission to examine the need for new legislation to prevent future fire disasters. The Commission will inspect 1,836 establishments and interview 222 witnesses before issuing its report. In part because of the work of the Commission, "the golden era in remedial factory legislation" is launched. Over the next three years, New York will enact 36 new safety laws. | Ref: 87 |
| Dec 04 | (Triangle) Jury selection begins in the manslaughter trial of Harris and Blanck. | Ref: 87 |
| Dec 05 | (Triangle) An angry crowd of women shout "Murderers! Murderers!" at the two defendants as they exit an elevator in the courtroom. | Ref: 87 |
| Dec 27 | (Triangle) The jury retires to deliberate. After just less than two hours of discussion, the jury returns a verdict of not guilty. | Ref: 87 |
- 1912
| Mar 21 | (Triangle) The District Attorney moves for a second trial of Harris and Blanck, based on manslaughter indictments involving different victims than those in the first tria. The case will be dismissed, however, on Double Jeopardy grounds. | Ref: 87 |
- 1914
| Mar 11 | (Triangle) Twenty-three individual suits for damages against Triangle are settled for an average of just $75 per life lost. | Ref: 87 |
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Triangle Shirtwaist Factory Chronology