| 2022-02-18 | Thousands Strike Across Puerto Rico Demanding End to PROMESA, Austerity, and Privatization in National Day of Action
4 src United Auto Workers · Financial Oversight and Management Board for Puerto Rico | | confirmed |
| 2021-06-01 | LUMA Energy Assumes Control of Puerto Rico's Grid Amid Massive 'Fuera LUMA' Protests Against McKinsey-Designed Privatization
9 src Financial Oversight and Management Board for Puerto Rico | | confirmed |
| 2018-08-01 | 200+ Palantir Employees Sign Letter Protesting Company's ICE Contracts; External Protesters Demonstrate
4 src Palantir Technologies · Alex Karp · U.S. Immigration and Customs Enforcement · Tech Workers Coalition |
| confirmed |
| 1972-03-03 | Lordstown Strike Against GM Speedups Exposes New Worker Alienation
3 src Ted Kennedy | | confirmed |
| 1965-09-08 | Delano Grape Strike Launches UFW Movement, Challenges Agricultural Corporations
3 src United Farm Workers | | confirmed |
| 1962-09-30 | Cesar Chavez Founds NFWA, Begins Farmworker Organizing Campaign
3 src | | confirmed |
| 1958-11-04 | AFL-CIO Defeats Right-to-Work Campaigns in Five of Six States, Major Democratic Resistance Victory
3 src AFL-CIO · National Right to Work Committee | | confirmed |
| 1946-05-01 | Operation Dixie Launched to Unionize the South, Met with Violent Corporate Resistance
3 src Congress of Industrial Organizations · United Auto Workers · Ku Klux Klan |
| confirmed |
| 1945-11-21 | Largest Strike Wave in U.S. History Begins as 5 Million Workers Walk Out
4 src United Auto Workers · United Mine Workers · United Steelworkers · Walter Reuther · +2 | | confirmed |
| 1935-11-09 | Congress of Industrial Organizations Founded, Challenges AFL Craft Unionism
3 src John L. Lewis · United Mine Workers of America · Philip Murray | | confirmed |
| 1914-10-15 | Clayton Antitrust Act Signed: Labor Unions Exempted from Antitrust Laws, Gompers Calls It Labor's Magna Carta
4 src Woodrow Wilson · Samuel Gompers · American Federation of Labor |
| confirmed |
| 1912-01-12 | Lawrence "Bread and Roses" Strike: IWW Unites 20,000 Workers Across 51 Nationalities, Wins 15% Raise
3 src Industrial Workers of the World (IWW) |
| confirmed |
| 1905-06-27 | Industrial Workers of the World Founded, Challenges AFL Craft Unionism
3 src Eugene V. Debs · Western Federation of Miners | | confirmed |
| 1893-05-15 | Western Federation of Miners Founded After Coeur d'Alene Massacre
3 src Western Federation of Miners | | confirmed |
| 1892-11-08 | New Orleans General Strike: 30,000 Workers Achieve Interracial Labor Victory
3 src American Federation of Labor |
| confirmed |
| 1891-08-18 | People's Party Officially Forms in Texas, Launching Populist Movement
3 src Knights of Labor | | confirmed |
| 1891-07-15 | Coal Creek War Begins: Miners Free Convict Laborers, Attack Lease System
3 src | | confirmed |
| 1886-12-08 | American Federation of Labor Founded on Craft Union Model Excluding Unskilled Workers
3 src Samuel Gompers · Knights of Labor | | confirmed |
| 1886-01-01 | Knights of Labor Reaches Peak Membership of 700,000 Before Rapid Collapse
3 src Knights of Labor · Jay Gould · American workers | | confirmed |
| 1836-01-01 | Courts Prosecute Labor Unions as Criminal Conspiracies in 17 Cases Since 1806, Criminalizing Worker Organization
3 src Labor unions | | confirmed |
| 1835-06-01 | Philadelphia General Strike Wins Ten-Hour Workday for 17 Trades Despite Court Hostility to Labor Organizing
3 src | | confirmed |